List of mathematics articles (S)

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S

S-duality --
S-matrix --
S plane --
S transform --
S-unit --
S.O.S. Mathematics --
SA subgroup --
Saccheri quadrilateral --
Sacks spiral --
Sacred geometry --
Saddle-node bifurcation --
Saddle point --
Saddle surface --
Sadleirian Professor of Pure Mathematics --
Safe prime --
Safe sex makespan --
Safety in numbers --
Sagan's Identity --
Sail curve --
Saint-Venant's compatibility condition --
Saint-Venant's principle --
Saint-Venant's theorem --
Sainte-Laguë method --
Salem number --
Salem Prize --
Salinon --
Sammon's projection --
Sample (statistics) --
Sample continuous process --
Sample exclusion dimension --
Sample mean and sample covariance --
Sample size --
Sample space --
Sampling (statistics) --
Sampling design --
Sampling distribution --
Sampling equiprobably with dice --
Sampling error --
Sampling fraction --
Sampling risk --
Sampling theory --
Sampling variogram --

San

Sand table --
Sangaku --
Santa Fe Institute --
Sard's theorem --
Sargan test --
Sasakian manifold --
Sasquatch principle --
SASTRA Ramanujan Prize --
SAT Subject Test in Mathematics Level 1 --
SAT Subject Test in Mathematics Level 2 --
Satellite knot --
Satisfiability Modulo Theories --
Sato-Tate conjecture --
Saturated array --
Saturated measure --
Saturated model --
Saturation (graph theory) --
Saturation arithmetic --
Savilian Professor of Geometry --
Savitzky–Golay smoothing filter --
Sawtooth wave --
Saxon (teaching method) --
Sazonov's theorem --
Scalar (mathematics) --
Scalar curvature --
Scalar field --
Scalar multiplication --
Scalar potential --
Scalar resolute --
Scalar-tensor theory --
Scale analysis (mathematics) --
Scale analysis (statistics) --
Scale factor --
Scale-free network --
Scale invariance --
Scale-invariant feature transform --
Scale-inverse-chi-square distribution --
Scale parameter --
Scaleogram --
Scaling (geometry) --
Scaling limit --
Scatter matrix --
Scattering theory --
Scatterplot --

Sch

Schanuel's conjecture --
Schanuel's lemma --
Schatten class operator --
Schatten norm --
Schauder basis --
Schauder fixed point theorem --
Scheffé's method --
Scheil equation --
Scheinerman's conjecture --
Scheme (mathematics) --
Scherk surface --
Schiffler point --
Schiffler's theorem --
Schild's ladder --
Schilder's theorem --
Schinzel's hypothesis H --
Schläfli-Hess polychoron --
Schläfli symbol --
Schlegel diagram --
Schmidt decomposition --
Schmidt's theorem --
Schnirelmann density --
Schnorr group --
Schnorr signature --
Schnyder's theorem --
Schoch circles --
Schoch line --
Schoen-Yau conjecture --
Schoenflies notation --
Scholarpedia --
Scholz conjecture --
Schönhage-Strassen algorithm --
Schoof-Elkies-Atkin algorithm --
Schoof's algorithm --
School Mathematics Project --
School Mathematics Study Group --
School of Mathematics, University of Manchester --
Schopenhauer's criticism of the proofs of the parallel postulate --
Schottky group --
Schottky problem --
Schouten-Nijenhuis bracket --
Schouten tensor --
Schramm–Loewner evolution --
Schreiber High School Pi Day --
Schreier conjecture --
Schreier refinement theorem --
Schreier-Sims algorithm --
Schreier vector --
Schreier's subgroup lemma --
Schröder–Bernstein theorems for operator algebras --
Schröder number --
Schrödinger equation --
Schrödinger method --
Schroeder-Bernstein theorem for measurable spaces --
Schubert calculus --
Schubert variety --
Schuette–Nesbitt formula --
Schur complement --
Schur complement method --
Schur-convex function --
Schur decomposition --
Schur multiplier --
Schur orthogonality relations --
Schur polynomial --
Schur test --
Schur–Weyl duality --
Schur–Zassenhaus theorem --
Schur's inequality --
Schur's lemma --
Schur's theorem --
Schwartz-Bruhat function --
Schwartz kernel theorem --
Schwartz set --
Schwartz space --
Schwartz-Zippel lemma and testing polynomial identities --
Schwarz–Ahlfors–Pick theorem --
Schwarz alternating method --
Schwarz-Christoffel mapping --
Schwarz formula --
Schwarz lemma --
Schwarz reflection principle --
Schwarz triangle --
Schwarzian derivative --
Schwarzschild coordinates --
Schwarzschild metric --
Schwenk's theorem --
Schwinger function --
Schwinger model --
Schwinger parametrization --
Schwinger's variational principle --

Sci

Scientific calculator --
Scientific notation --
Score (statistics) --
Score test --
Scorer's function --
Scoring algorithm --
SCORUS --
Scott continuity --
Scott core theorem --
Scott domain --
Scott information system --
Scott–Potter set theory --
Scottish Café --
Screened Poisson equation --
Screw axis --
Scripta Mathematica --
Sculpted prim --
SEAMEO Mathematics Olympiad --
Search algorithm --
Seashell surface --
Secant --
Secant line --
Secant method --
Secant variety --
Second-countable space --
Second derivative test --
Second fundamental form --
Second generation wavelet transform --
Second Hardy-Littlewood conjecture --
Second moment method --
Second-order arithmetic --
Second order cellular automaton --
Second-order cone programming --
Second-order logic --
Second-order predicate --
Second partial derivative test --
Secondary calculus and cohomological physics --
Secondary measure --
Secondary polynomials --
Secretary problem --
Section (category theory) --
Section (fiber bundle) --
Section (group theory) --
Section (mathematics) --
Section modulus --
Sectional curvature --
Sectrix of Maclaurin --
Secular variation --

Sed

Sedenion --
Sedleian Professor of Natural Philosophy --
Seemingly unrelated regression --
Segal conjecture --
Segal-Shale-Weil distribution --
Segmented regression --
Segre classification --
Segre embedding --
Seiberg duality --
Seiberg–Witten invariant --
Seidel adjacency matrix --
Seifert conjecture --
Seifert fiber space --
Seifert surface --
Seifert–van Kampen theorem --
Seifert-Weber space --
Seismic tomography --
Selberg class --
Selberg integral --
Selberg sieve --
Selberg trace formula --
Selberg zeta function --
Selection bias --
Selection error --
Self-adjoint --
Self-adjoint operator --
Self-affinity --
Self-avoiding walk --
Self-complementary graph --
Self-concordant function --
Self-consistent mean field (biology) --
Self-descriptive number --
Self-Indication Assumption Doomsday argument rebuttal --
Self-information --
Self-linking number --
Self number --
Self-organized criticality --
Self-selection --
Self-similarity --
Self-verifying theories --
Selfridge's conjecture --
Sellmeier equation --

Sem

Semantic mapping (statistics) --
Semantic relatedness --
Semantic similarity --
Semi-continuity --
Semi-differentiability --
Semi-elliptic operator --
Semi-Hilbert space --
Semi-implicit Euler method --
Semi-linear resolution --
Semi-local ring --
Semi-locally simply connected --
Semi-major axis --
Semi-Markov process --
Semi-minor axis --
Semi-s-cobordism --
Semi-simple operator --
Semi-symmetric graph --
Semialgebraic set --
Semialgebraic space --
Semiautomaton --
Semicircle --
Semicubical parabola --
Semidefinite embedding --
Semidefinite programming --
Semidirect product --
Semifield --
Semigroup --
Semigroup action --
Semigroupoid --
Semilattice --
Semilog graph --
Semimartingale --
Semimetric space --
Semimodular lattice --
Séminaire Nicolas Bourbaki --
Séminaire Nicolas Bourbaki (1950–1959) --
Séminaire Nicolas Bourbaki (1960–1969) --
Seminormal subgroup --
Semiparametric model --
Semiparametric regression --
Semiperfect magic cube --
Semiperfect number --
Semiperfect ring --
Semiperimeter --
Semipermutable subgroup --
Semiprime --
Semiprime ring --
Semiprimitive ring --
Semiregular 4-polytope --
Semiregular k 21 polytope --
Semiregular polyhedron --
Semiregular space --
Semiring --
Semiset --
Semisimple --
Semisimple algebra --
Semisimple algebraic group --
Semisimple Lie algebra --
Semisimple module --
Semistable abelian variety --
Semivariance --

Sen

Senary --
Senior Whitehead Prize --
Sensitivity and specificity --
Sentence (mathematical logic) --
Sentence logic --
Separability --
Separable algebra --
Separable differential equation --
Separable extension --
Separable partial differential equation --
Separable polynomial --
Separable sigma algebra --
Separable space --
Separated sets --
Separating axis theorem --
Separating set --
Separation axiom --
Separation of variables --
Separation test --
Separatrix (dynamical systems) --
Separoid --
Septemvigesimal --
Septenary --
Sequence --
Sequence space --
Sequence transformation --
Sequent --
Sequent calculus --
Sequential analysis --
Sequential closure operator --
Sequential dynamical system --
Sequential estimation --
Sequential probability ratio test --
Sequential quadratic programming --
Sequential space --
Sequentially compact space --

Ser

Serial relation --
Series (mathematics) --
Series acceleration --
Series-parallel graph --
Series-parallel networks problem --
Serpentine curve --
Serpentine shape --
Serre conjecture --
Serre conjecture (number theory) --
Serre duality --
Serre spectral sequence --
Serre–Swan theorem --
Serre's multiplicity conjectures --
Serre's property FA --
Seshadri constant --
Sesquilinear form --
Set (computer science) --
Set (mathematics) --
Set-builder notation --
Set cover problem --
Set notation --
Set of all sets --
Set of uniqueness --
Set packing --
Set partitioning in hierarchical trees --
Set system of finite character --
Set-theoretic definition of natural numbers --
Set-theoretic limit --
Set theoretic programming --
Set-theoretic topology --
Set theory --
Set theory (music) --
Set theory of the real line -- --
SETAR (model) --
Sethi-Ullman algorithm --
Setoid --

Sev

Seven Bridges of Königsberg --
Seven Bridges of Königsberg/key --
Seven circles theorem --
Seven-dimensional cross product --
Seven-number summary --
Seventeen or Bust --
Several complex variables --
Severi-Brauer variety --
Sexagesimal --
Sextic plane curve --
Sexy prime --
Shabakh --
Shadow price --
Shallow water equations --
Shams al-Dīn al-Samarqandī --
Shanks-Tonelli algorithm --
Shanks' square forms factorization --
Shannon–Hartley theorem --
Shannon index --
Shannon number --
Shannon switching game --
Shannon wavelet --
Shannon–Weaver model --
Shannon's expansion --
Shannon's source coding theorem --
Shape --
Shape analysis --
Shape factor (image analysis and microscopy) --
Shape moiré --
Shape of the Universe --
Shape optimization --
Shape parameter --
Shape theory (mathematics) --
Shapiro inequality --
Shapiro polynomials --
Shapiro-Wilk test --
Shapiro's lemma --
Sharkovskii's theorem --
Sharp map --
Shaw Prize --

She

Sheaf (mathematics) --
Sheaf cohomology --
Sheaf extension --
Sheaf spanned by global sections --
Shear mapping --
Shear matrix --
SHEEP (symbolic computation system) --
Sheffer sequence --
Sheffer stroke --
Shekel function --
Shelah cardinal --
Shell integration --
Shephard's lemma --
Shephard's problem --
Sherman–Morrison formula --
Shift matrix --
Shift operator --
Shift rule --
Shift space --
Shift theorem --
Shifted Gompertz distribution --
Shifting nth-root algorithm --
Shilov boundary --
Shimura variety --
Shock capturing methods --
Shoelace formula --
Shooting method --
Shor's algorithm --
Short division --
Short five lemma --
Short-time Fourier transform --
Shortcut model --
Shortest common supersequence --
Shortest path problem --
Shortest path tree --
Shortlex order --

Shr

Shrikhande graph --
Shrinkage (statistics) --
Shrinking space --
Shuffling --
Shulba Sutras --
Shusaku number --
SI prefix --
Siamese method --
Sichel distribution --
Sicherman dice --
Side (geometry) --
Sides of an equation --
Siegel disc --
Siegel modular form --
Siegel-Tukey test --
Siegel upper half-space --
Siegel–Walfisz theorem --
Siegel zero --
Siegel's lemma --
Siegel's theorem on integral points --
Sierpiński arrowhead curve --
Sierpiński carpet --
Sierpiński curve --
Sierpinski number --
Sierpiński space --
Sierpiński triangle --
Sierpiński's constant --
Sieve (category theory) --
Sieve (mathematics) --
Sieve estimator --
Sieve of Atkin --
Sieve of Eratosthenes --
Sieve of Sundaram --
Sieve theory --

Sig

Sigma additivity --
Sigma-algebra --
Sigma approximation --
Sigma-finite measure --
Sigma function --
Sigma-ideal --
Sigma-ring --
Sigmoid function --
Sign convention --
Sign function --
Sign relational complex --
Sign test --
Signal theory --
Signal-to-noise statistic --
Signature (logic) --
Signature (mathematics) --
Signature (topology) --
Signature matrix --
Signature of a knot --
Signed-digit representation --
Signed distance function --
Signed graph --
Signed measure --
Signed number representations --
Significance arithmetic --
Significand --
Significant figures --
Signomial --
Silver machine --
Silver ratio --
Silver rectangle --
Silverman–Toeplitz theorem --
Silverman's game --

Sim

Sim (pencil game) --
Similar matrix --
Similarity (geometry) --
Similarity invariance --
Similarity matrix --
Similarity transformation --
Similarly sorted --
Simple (abstract algebra) --
Simple algebra --
Simple extension --
Simple function --
Simple group --
Simple harmonic motion --
Simple Lie group --
Simple linear regression --
Simple magic cube --
Simple magic square --
Simple module --
Simple moving average crossover --
Simple polygon --
Simple polytope --
Simple random sample --
Simple rational approximation --
Simple ring --
Simple set --
Simple theorems in the algebra of sets --
Simplex --
Simplex algorithm --
Simplicial approximation theorem --
Simplicial category --
Simplicial complex --
Simplicial homology --
Simplicial manifold --
Simplicial polytope --
Simplicial set --
Simplification (logic) --
Simply connected at infinity --
Simply connected space --
Simply typed lambda calculus --
Simpson index --
Simpson's paradox --
Simpson's rule --
Simson line --
Simulated annealing --
Simulation preorder --
Simultaneous equation model --
Simultaneous equations --

Sin

Sinc function --
Sine and cosine transforms --
Sine-Gordon equation --
Sine wave --
Singapore Math Method --
Singapore Mathematical Olympiad --
Single-entry matrix --
Single linkage clustering --
Single machine scheduling --
Single-valued function --
Singleton (mathematics) --
Singleton bound --
Singly and doubly even --
Singmaster's conjecture --
Singular cardinals hypothesis --
Singular control --
Singular distribution --
Singular function --
Singular homology --
Singular integral --
Singular measure --
Singular perturbation --
Singular point of a curve --
Singular point of an algebraic variety --
Singular solution --
Singular value --
Singular value decomposition --
Singularity function --
Singularity theory --
Sinkov statistic --
Sinusoidal model --
Sinusoidal spiral --

Sio

Sion's minimax theorem --
SIPTA --
Sir Cumference (series of books) --
Sir Edmund Whittaker Memorial Prize --
Situation calculus --
Six circles theorem --
Six exponentials theorem --
Sixth Term Examination Paper --
Size function --
Size functor --
Size homotopy group --
Size pair --
SK-42 Reference System --
Skein relation --
Skeleton (category theory) --
Skellam distribution --
Skew --
Skew-Hamiltonian matrix --
Skew-Hermitian matrix --
Skew lattice --
Skew lines --
Skew normal distribution --
Skew polygon --
Skew-symmetric graph --
Skew-symmetric matrix --
Skewes' number --
Skewness --
Skewness risk --
SKI combinator calculus --
Skip counting --

Skl

Sklar's theorem --
Skoda-El Mir theorem --
Skolem hull --
Skolem–Noether theorem --
Skolem normal form --
Skolem's paradox --
Skorokhod integral --
Skorokhod's embedding theorem --
Skorokhod's representation theorem --
Skyline matrix --
Sl2-triple --
SL2(R) --
Slack variable --
Slam-dunk --
Slant height --
Slashed zero --
Slater determinant --
Sleeping Beauty problem --
Slender group --
Slepian's lemma --
Slerp --
Slewing --
Slice genus --
Slice knot --
Slice sampling --
Slide rule --
Sliding mode control --
Sloan Fellowship --
Slope --
Slope field --
Slothouber–Graatsma puzzle --
Slowly varying function --

Slu

Slutsky's theorem --
Smale's paradox --
Smale's problems --
Small-angle approximation --
Small area estimation --
Small circle --
Small cubicuboctahedron --
Small ditrigonal dodecicosidodecahedron --
Small ditrigonal icosidodecahedron --
Small dodecahemicosahedron --
Small dodecahemidodecahedron --
Small dodecicosahedron --
Small dodecicosidodecahedron --
Small gross --
Small icosicosidodecahedron --
Small icosihemidodecahedron --
Small Latin squares and quasigroups --
Small number --
Small retrosnub icosicosidodecahedron --
Small rhombidodecahedron --
Small rhombihexahedron --
Small rhombitriheptagonal tiling --
Small rhombitrihexagonal tiling --
Small set --
Small set (category theory) --
Small set (combinatorics) --
Small snub icosicosidodecahedron --
Small stellated 120-cell --
Small stellated dodecahedron --
Small stellated truncated dodecahedron --
Small subgroup confinement attack --
Small triambic icosahedron --
Small Veblen ordinal --
Small-world network --
Small world routing --
Smallest circle problem --
Smallest grammar problem --
Smarandache function --
Smarandache-Wellin number --
Smash product --

Sme

Smearing retransformation --
Smith conjecture --
Smith–Minkowski–Siegel mass formula --
Smith normal form --
Smith number --
Smith-Volterra-Cantor set --
Smith-Waterman algorithm --
Smith's Prize --
Smn theorem --
Smooth coarea formula --
Smooth function --
Smooth infinitesimal analysis --
Smooth number --
Smooth vector --
Smoothed analysis --
Smoothed particle hydrodynamics --
Smoothing --
Smoothing spline --
Snake-in-the-box --
Snake lemma --
SnapPea --
Snark (graph theory) --
SNARK theorem prover --
Snowball sampling --
Snub 24-cell --
Snub cube --
Snub disphenoid --
Snub dodecadodecahedron --
Snub dodecahedron --
Snub hexagonal tiling --
Snub icosidodecadodecahedron --
Snub polyhedron --
Snub square antiprism --
Snub square prismatic honeycomb --
Snub square tiling --
Snub triangular-hexagonal prismatic honeycomb --

So

SO(4) --
SO(5) --
SO(8) --
Soap bubble --
Sober space --
Sobolev conjugate --
Sobolev inequality --
Sobolev space --
Sociable number --
Social-circles network model --
Social statistics --
Société Mathématique de France --
Society for Industrial and Applied Mathematics --
Society of Mathematicians, Physicists and Astronomers of Slovenia --
Society of Young Mathematicians --
Socle (mathematics) --
Soddy's hexlet --
Soft independent modelling of class analogies --
Software for calculating π --
Sokhatsky-Weierstrass theorem --
Solder form --
Sole sufficient operator --
Solenoid (mathematics) --
Solenoidal vector field --
Solid angle --
Solid geometry --
Solid harmonics --
Solid Klein bottle --
Solid modeling --
Solid of revolution --
Solid sweep --
Solid torus --
Solitary wave --
Soliton --
Soliton (optics) --
Solovay–Strassen primality test --
Solution of the Poincaré conjecture --
Solution set --
Solvable --
Solvable group --
Solvable Lie algebra --
Solved game --
Solving fractional equations --
Solving quadratic equations with continued fractions --
Solving the geodesic equations --
Solvmanifold --

Som

Soma cube --
Somer-Lucas pseudoprime --
Sommerfeld identity --
Sommerfeld radiation condition --
Somos' quadratic recurrence constant --
Sophie Germain prime --
Sophomore's dream --
Sorgenfrey plane --
Sorting algorithm --
SOS (game) --
Souček space --
Soul theorem --
Soundness --
Space --
Space (mathematics) --
Space diagonal --
Space-filling curve --
Space form --
Space group --
Space hierarchy theorem --
Space partitioning --
Spaceland (novel) --
Spacetime algebra --
Spacetime symmetries --
Spacetime topology --
Spadikam --
Span (category theory) --
Spanier-Whitehead duality --
Spanning tree (mathematics) --
Spark (mathematics) --
Sparse approximation --
Sparse binary polynomial hashing --
Sparse graph --
Sparse graph code --
Sparse grid --
Sparse matrix --
Sparse vector --
Sparsely totient number --
Spatial analysis --
Spatial dependence --
Spatial descriptive statistics --
Spatial network --
Spatial variability --

Spe

Spearman-Brown prediction formula --
Spearman's rank correlation coefficient --
Special affine group --
Special cases of Apollonius' problem --
Special divisor --
Special functions --
Special linear group --
Special number field sieve --
Special ordered set --
Special right triangles --
Special unitary group --
Specialization (pre)order --
Species-area curve --
Species discovery curve --
Specification (regression) --
Spectral asymmetry --
Spectral concentration problem --
Spectral density --
Spectral density estimation --
Spectral element method --
Spectral flux --
Spectral gap --
Spectral graph theory --
Spectral layout --
Spectral leakage --
Spectral method --
Spectral radius --
Spectral sequence --
Spectral set --
Spectral space --
Spectral theorem --
Spectral theory --
Spectral theory of compact operators --
Spectral theory of ordinary differential equations --
Spectral width --
Spectrum (functional analysis) --
Spectrum (homotopy theory) --
Spectrum bias --
Spectrum continuation analysis --
Spectrum of a C*-algebra --
Spectrum of a ring --
Spectrum of a theory --
Speed prior --
Speedup theorem --
Spence's function --
Sperner family --
Sperner's lemma --

Sph

Sphaleron --
Sphenic number --
Sphenocorona --
Sphenomegacorona --
Sphere --
Sphere packing --
Sphere theorem --
Sphere theorem (3-manifolds) --
Sphere-world --
Sphereland --
Spherical 3-manifold --
Spherical angle --
Spherical cap --
Spherical coordinate system --
Spherical design --
Spherical function --
Spherical geometry --
Spherical harmonics --
Spherical mean --
Spherical model --
Spherical multipole moments --
Spherical pendulum --
Spherical polyhedron --
Spherical space form conjecture --
Spherical trigonometry --
Spherically symmetric spacetime --
Sphericity --
Sphericon --
Spheroid --
Spheroidal wave equation --
Spheroidal wave function --

Spi

Spider diagram --
Spidron --
Spieker circle --
Spigot algorithm --
Spijker's lemma --
Spiking neural network --
Spin connection --
Spin group --
Spin network --
Spin representation --
Spin-statistics theorem --
Spin structure --
Spin tensor --
Spin-weighted spherical harmonics --
Spin(7)-manifold --
Spinor --
Spinor bundle --
Spinors in three dimensions --
Spiral --
Spiral of Theodorus --
Spiric section --
Spirograph --
Spline (mathematics) --
Spline interpolation --
Split-biquaternion --
Split-complex number --
Split graph --
Split link --
Split-octonion --
Split-quaternion --
Split-radix FFT algorithm --
Split-step method --
Splitter (geometry) --
Splitting circle method --
Splitting field --
Splitting lemma --
Splitting of prime ideals in Galois extensions --
Splitting principle --
Splitting theorem --

Spo

Spontaneous symmetry breaking --
Spoof (game) --
Sporadic group --
Spouge's approximation --
SPQR-tree --
Sprague–Grundy theorem --
Spread of a matrix --
Spread polynomials --
Spring (mathematics) --
Springer correspondence --
Sprouts (game) --
Spurious relationship --
SQ universal group --
Square (algebra) --
Square (geometry) --
Square antiprism --
Square bifrustum --
Square-cube law --
Square cupola --
Square-free --
Square-free integer --
Square-free polynomial --
Square gyrobicupola --
Square lattice --
Square-lattice Ising model --
Square number --
Square One Television --
Square orthobicupola --
Square pyramid --
Square pyramidal number --
Square root --
Square root day --
Square root of 2 --
Square root of 3 --
Square root of 5 --
Square root of a matrix --
Square tiling --
Square triangular number --
Square truncated trapezohedron --
Square wave --
Square wheel --
Squared deviations --
Squared triangular number --
Squarefree word --
Squarian digits --
Squaring the circle --
Squaring the square --
Squeeze mapping --
Squeeze operator --
Squeeze theorem --
Squircle --
Squoval --

Sr1

SR1 formula --
Srivastava code --
St. Petersburg Department of Steklov Institute of Mathematics of Russian Academy of Sciences --
St. Petersburg Mathematical Society --
St. Petersburg paradox --
Stability --
Stability (probability) --
Stability group --
Stability of the Solar System --
Stability radius --
Stability spectrum --
Stability theory --
Stabilizer --
Stabilizer code --
Stable attractor --
Stable curve --
Stable group --
Stable homotopy category --
Stable homotopy theory --
Stable manifold --
Stable manifold theorem --
Stable map --
Stable marriage problem --
Stable normal bundle --
Stable polynomial --
Stable roommates problem --
Stable set --
Stable theory --
Stable vector bundle --
Stack (descent theory) --
Stairstep interpolation --
Stalk (sheaf) --
Stallings theorem about ends of groups --
Stallings-Zeeman theorem --
Stand and Deliver --
Standard algorithms --
Standard array --
Standard basis --
Standard Boolean model --
Standard conjectures on algebraic cycles --
Standard deviation --
Standard error (statistics) --
Standard form --
Standard map --
Standard model (disambiguation) --
Standard normal deviate --
Standard normal table --
Standard part function --
Standard probability space --
Standard score --
Standard torus --
Standardized coefficient --
Standardized moment --
Standardized rate --
Stanford University Mathematics Camp --
Stanine --
Stanley-Wilf conjecture --
Stanley's reciprocity theorem --
Star (game) --
Star (graph theory) --
Star domain --
Star-free language --
Star height --
Star height problem --
STAR model --
Star number --
Star polygon --
Star polyhedron --
Star product --
Star refinement --
Star-shaped polygon --
Star transform --
Stark–Heegner theorem --
Stark's conjecture --
Stars and bars (probability) --
Stata --
State (functional analysis) --
State diagram --
State observer --
State space (controls) --
State space (physics) --
Statements true in L --
Static analysis --
Static spacetime --
Stationary distribution --
Stationary ergodic process --
Stationary phase --
Stationary phase approximation --
Stationary point --
Stationary process --
Stationary sequence --
Stationary set --
Stationary spacetime --
Stationary wavelet transform --
Statistic --
Statistical assembly --
Statistical assumption --
Statistical benchmarking --
Statistical classification --
Statistical conclusion validity --
Statistical dispersion --
Statistical distance --
Statistical ensemble (mathematical physics) --
Statistical epidemiology --
Statistical finance --
Statistical geography --
Statistical graphics --
Statistical hypothesis testing --
Statistical independence --
Statistical inference --
Statistical interference --
Statistical literacy --
Statistical mechanics --
Statistical methodology analysis reporting technique --
Statistical Methods for Research Workers --
Statistical model --
Statistical model validation --
Statistical noise --
Statistical parameter --
Statistical parametric mapping --
Statistical phenomena --
Statistical population --
Statistical power --
Statistical practice --
Statistical probability --
Statistical process control --
Statistical proof --
Statistical randomness --
Statistical regularity --
Statistical Science --
Statistical signal processing --
Statistical significance --
Statistical Society of Canada --
Statistical survey --
Statistical syllogism --
Statistical theory --
Statistical unit --
Statistical weight --
Statisticians' and engineers' cross-reference of statistical terms --
Statistics --

Ste

Steady state --
Steane code --
Steenrod algebra --
Stefan problem --
Stefan's formula --
Steffensen's inequality --
Steffensen's method --
Stein manifold --
Stein-Strömberg theorem --
Stein's example --
Stein's lemma --
Stein's method --
Stein's unbiased risk estimate --
Steinberg group (K-theory) --
Steinberg representation --
Steiner chain --
Steiner inellipse --
Steiner-Lehmus theorem --
Steiner points --
Steiner surface --
Steiner system --
Steiner tree --
Steiner's problem --
Steinhaus-Johnson-Trotter algorithm --
Steinhaus longimeter --
Steinhaus–Moser notation --
Steinhaus theorem --
Steinmetz solid --
Steklov Institute of Mathematics --
Stella (software) --
Stella octangula --
Stellated truncated hexahedron --
Stellation --
Stellation diagram --
STEM fields --
Stemplot --
Stencil (numerical analysis) --
Stencil codes --
Stencil jumping --
Stengle's Positivstellensatz --
Step function --
Step response --
Stepped Reckoner --
Stepwise regression --
Steradian --
Stereographic projection --
Stern-Brocot tree --
Stern prime --
Stewart-Walker lemma --
Stewart's theorem --

Sti

Stick number --
Stickelberger's theorem --
Stiefel manifold --
Stiefel–Whitney class --
Stieltjes constants --
Stieltjes matrix --
Stieltjes moment problem --
Stieltjes transformation --
Stiff equation --
Stigler diet --
Stigler's conjecture --
Stimulus-response model --
Stinespring factorization theorem --
Stirling number --
Stirling numbers and exponential generating functions --
Stirling numbers of the first kind --
Stirling numbers of the second kind --
Stirling transform --
Stirling's approximation --
Stochastic --
Stochastic approximation --
Stochastic calculus --
Stochastic context-free grammar --
Stochastic differential equation --
Stochastic gradient descent --
Stochastic hill climbing --
Stochastic kernel estimation --
Stochastic matrix --
Stochastic modelling (insurance) --
Stochastic optimization --
Stochastic ordering --
Stochastic partial differential equation --
Stochastic process --
Stochastic processes and boundary value problems --
Stochastic programming --
Stochastic simulation --
Stochastic tunneling --
Stochastically stable equilibrium --
Stokes' theorem --
Stolarsky mean --
Stolz-Cesàro theorem --
Stone–Čech compactification --
Stone duality --
Stone method --
Stone–von Neumann theorem --
Stone–Weierstrass theorem --
Stone's representation theorem for Boolean algebras --
Stone's theorem on one-parameter unitary groups --
Stoneham number --
Stopped process --
Stopping time --
Størmer number --
Størmer's theorem --

Str

Strachey method for magic squares --
Strähle construction --
Strahler Stream Order --
Straight and Crooked Thinking --
Straight skeleton --
Straightedge --
Strassen algorithm --
Strassmann's theorem --
Strategic move --
Strategy-stealing argument --
Stratification (mathematics) --
Stratified sampling --
Stratonovich integral --
Stream function --
Streamline diffusion --
Streett automaton --
Stress-energy-momentum pseudotensor --
Stress-energy tensor --
Stress majorization --
Stress-strain curve --
Stretched exponential function --
Stretching field --
Strict --
Strict differentiability --
Strict function --
Strict logic --
Strict weak ordering --
Strictly convex space --
Strictly non-palindromic number --
Strictly positive measure --
Strictly proper --
Strictly simple group --
String art --
String diagram --
String graph --
String rewriting --
Strip algebra --
Strobogrammatic number --
Strobogrammatic prime --
Strong antichain --
Strong cardinal --
Strong coloring --
Strong Frobenius pseudoprime --
Strong generating set --
Strong generative capacity --
Strong Law of Small Numbers --
Strong monad --
Strong operator topology --
Strong partition cardinal --
Strong perfect graph theorem --
Strong prime --
Strong prior --
Strong product of graphs --
Strong pseudoprime --
Strong topology --
Strong topology (polar topology) --
Strongly compact cardinal --
Strongly connected component --
Strongly minimal theory --
Strongly monotone --
Strongly positive bilinear form --
Strongly regular graph --
Strongly ribbon category --
Strophoid --
Structural analysis --
Structural equation modeling --
Structural equation modelling --
Structural induction --
Structural mechanics --
Structural proof theory --
Structural rule --
Structural stability --
Structure (category theory) --
Structure (mathematical logic) --
Structure space --
Structure tensor --
Structure theorem for finitely generated modules over a principal ideal domain --
Structure theorem for Gaussian measures --
Structured program theorem --
Struve function --

Stu

Stuck unknot --
Student's t-distribution --
Student's t-test --
Studentized range --
Studentized residual --
Studia Mathematica --
Stunted projective space --
Sturm-Liouville theory --
Sturm-Picone comparison theorem --
Sturm separation theorem --
Sturm's theorem --
Sturmian word --
Stuttering equivalence --
Suanpan --
Sub-exponential time --
Sub-Riemannian manifold --
Subabnormal subgroup --
Subadditivity --
Subalgebra --
Subbase --
Subbundle --
Subcategory --
Subclass (set theory) --
Subclass reachability --
Subcoloring --
Subcompact cardinal --
Subcontrary mean --
Subcountability --
Subderivative --
Subdirect irreducible --
Subdirect product --
Subdivided interval categories --
Subdivision surface --
Subfactor --
Subfactorial --
Subfunctor --
Subgradient method --
Subgraph isomorphism problem --
Subgroup --
Subgroup analysis --
Subgroup growth --
Subgroup series --
Subgroup test --
Subharmonic function --
Subjective expected utility --
Subjective logic --
Subjectivism --
Sublime number --
Sublinear function --
Submanifold --
Submatrix --
Submaximal space --
Submersion (mathematics) --
Subnet (mathematics) --
Subnormal operator --
Subnormal subgroup --
Subobject --
Subobject classifier --
Subquadratic time --
Subquotient --
Subring --
Subring test --
Subsequence --
Subsequential limit --
Subset --
Subset sum problem --
Subshift of finite type --
Subspace --
Subspace (linear algebra) --
Subspace theorem --
Subspace topology --
Substitution instance --
Substitution matrix --
Substitution model --
Substitution of variables --
Substitution-permutation network --
Substitution tiling --
Substructural logic --
Substructure --
Subtangent --
Subtended arc --
Subtle cardinal --
Subtract a square --
Subtraction --
Subtraction without borrowing --
Subtractive notation --

Suc

Successive linear programming --
Successive over-relaxation --
Successive parabolic interpolation --
Successor cardinal --
Successor ordinal --
Sucker bet --
Sudan function --
Sudoku --
Sufficiency (statistics) --
Sufficiently connected --
Sufficiently large --
Suken --
Sullivan conjecture --
Sum-free sequence --
Sum-free set --
Sum of Logic --
Sum of normally distributed random variables --
Sum of squares --
Sum-product number --
Sum rule --
Sum rule in differentiation --
Sum rule in integration --
Sum search --
Summa --
Summa (mathematics) --
Summary statistics --
Summation --
Summation by parts --
Summation of Grandi's series --
Sumset --
Sumudu transform --

Sun

Sunrise problem --
Super-logarithm --
Super PI --
Super-Poulet number --
Super-prime --
Super-root --
Super vector space --
Super Virasoro algebra --
Superabundant number --
Superadditive --
Superalgebra --
Supercell (crystal) --
Supercombinator --
Supercommutative algebra --
Supercompact --
Supercompact cardinal --
Supercompact space --
Superconvergence --
Superdiffeomorphism --
Superellipse --
Superellipsoid --
Superformula --
Supergroup (physics) --
Superior highly composite number --
Supermanifold --
Supermathematics --
Supermatrix --
Supermodular --
Supermodule --
Superoperator --
Superparticular number --
Superpattern --
Superperfect group --
Superperfect number --
Superposition calculus --
Superposition principle --
Superprime --
Superprocess --
Superquadrics --
Superreal number --
Supersingular K3 surface --
Supersingular prime --
Supersolvable group --
Superspace --
Superstatistics --
Superstrong cardinal --
Supersymmetry as a quantum group --
Supertrace --
Supervisory control theory --
Supnick matrix --
Supplementary angles --
Support (mathematics) --
Support (measure theory) --
Support function --
Support vector machine --
Supporting hyperplane --
Supremum --

Sur

Surcomplex number --
Surface --
Surface area --
Surface bundle --
Surface bundle over the circle --
Surface fractal --
Surface gradient --
Surface integral --
Surface normal --
Surface of constant width --
Surface of general type --
Surface of revolution --
Surface subgroup conjecture --
Surface Water Simulation Modelling Programme --
Surgery theory --
Surjective function --
Surplus variable --
Surreal number --
Surrogate model --
Survey sampling --
Survival analysis --
Survival function --
Survivorship bias --
Surya Siddhanta --
Suslin cardinal --
Suslin set --
Suslin tree --
Suslin's problem --
Suspension (topology) --
Suzhou numerals --
Suzuki group --

Swa

Swami Bharati Krishna Tirtha's Vedic mathematics --
Swap regret --
Swarm intelligence --
Swastika curve --
Sweep line algorithm --
Swift-Hohenberg equation --
Swiss cheese (mathematics) --
Swiss Mathematical Society --
Switching function --
Syllogism --
Sylow subgroup --
Sylow theorems --
Sylver coinage --
Sylvester equation --
Sylvester–Gallai theorem --
Sylvester matrix --
Sylvester Medal --
Sylvester's determinant theorem --
Sylvester's formula --
Sylvester's law of inertia --
Sylvester's sequence --
Symbol of a differential operator --
Symbolic Cholesky decomposition --
Symbolic combinatorics --
Symbolic computation --
Symbolic dynamics --
Symbolic integration --
Symbolic logic --
Symbolic method --
Symbolic music --
Symmedian --
Symmetric algebra --
Symmetric bilinear form --
Symmetric derivative --
Symmetric design --
Symmetric difference --
Symmetric function --
Symmetric graph --
Symmetric group --
Symmetric hypergraph theorem --
Symmetric inverse semigroup --
Symmetric matrix --
Symmetric monoidal category --
Symmetric polynomial --
Symmetric product of an algebraic curve --
Symmetric relation --
Symmetric space --
Symmetric space (disambiguation) --
Symmetric tensor --
Symmetrically continuous function --
Symmetrization --
Symmetry --
Symmetry (biology) --
Symmetry breaking --
Symmetry combinations --
Symmetry group --
Symmetry in mathematics --
Symmetry of second derivatives --
Symmetry set --
Symplectic cut --
Symplectic filling --
Symplectic geometry --
Symplectic group --
Symplectic integrator --
Symplectic manifold --
Symplectic matrix --
Symplectic representation --
Symplectic space --
Symplectic sum --
Symplectic vector field --
Symplectic vector space --
Symplectization --
Symplectomorphism --

Syn

Synchronization of chaos --
Synchrotron function --
Syndetic set --
Synergetics coordinates --
Syntactic monoid --
Syntax (logic) --
Synthetic differential geometry --
Synthetic geometry --
Syntractrix --
System equivalence --
System F --
System identification --
System of imprimitivity --
System of linear equations --
Systematic code --
Systematic sampling --
Systoles of surfaces --
Systolic geometry --
SYZ conjecture --
Sz.-Nagy's dilation theorem --
Szász-Mirakyan-Kantorovich operator --
Szász-Mirakyan operator --
Szegö polynomial --
Szekeres snark --
Szemerédi regularity lemma --
Szemerédi–Trotter theorem --
Szemerédi's theorem --
Szilassi polyhedron --
Szpiro's conjecture --