- Berger inequality
In
mathematics , Berger inequality may refer to*
Berger's inequality for Einstein manifolds ;* the
Berger-Kazdan comparison theorem .
Wikimedia Foundation. 2010.
In
*
* the
Wikimedia Foundation. 2010.
Berger's inequality for Einstein manifolds — In mathematics mdash; specifically, in differential topology mdash; Berger s inequality for Einstein manifolds is the statement that any 4 dimensional Einstein manifold ( M , g ) has non negative Euler characteristic chi; ( M ) ge; 0. The… … Wikipedia
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Théorème isopérimétrique — En géométrie, un théorème isopérimétrique traite d une question concernant les compacts d un espace métrique muni d une mesure. Un exemple simple est donné par les compacts d un plan euclidien. Les compacts concernés sont ceux de mesures finies… … Wikipédia en Français