Louis Kauffman

Louis H. Kauffman (3 February, 1945) is an American mathematician, topologist, and professor of Mathematics in the Department of Mathematics, Statistics, and Computer science at the University of Illinois at Chicago. He is known for the introduction and development of the bracket polynomial and Kauffman polynomial.

Biography

Kauffman was born in 1945. He was of his graduating class at Norwood Norfolk Central High School in 1962. He received his B.S. at MIT in 1966 and his Ph.D. in mathematics from Princeton University in 1972.

Kaufmann has worked at many places as a visiting professor and researcher, including the University of Zaragoza in Spain, the University of Iowa in Iowa City, the Institute Hautes Etudes Scientifiques in Bures Sur Yevette, France, the Institute Henri Poincaré in Paris, France, the Univesidad de Pernambuco in Recife, Brasil, and the Newton Institute in Cambridge England. http://www.math.usf.edu/Nagle/kauffman.html ]

He is the founding editor and one of the managing editors of the "Journal of Knot Theory and its Ramifications", and editor of the "World Scientific Book Series On Knots and Everything". He writes a column entitled Virtual Logic for the journal "Cybernetics and Human Knowing"

In 2007 he is president of the American Society for Cybernetics. He is the 1993 recipient of the Warren McCulloch award of the American Society for Cybernetics

Work

Kauffman's interests are in cybernetics, topology (knot theory and its ramifications) and foundations of mathematics and physics. His work is primarily in knot theory and connections with statistical mechanics, quantum theory, algebra, combinatorics and foundations. These fields include representation and exploration of topology, fractals and recursions using computers, logical and diagrammatic algebras, Hopf algebras, relations of topology with statistical mechanics and quantum field theory, foundations of discrete physics, quantum computing. [ [http://www.asci.org/artsci2002/artworks/Sunday/explorations.htm Presentation ] ] In topology he introduced and developed the bracket polynomial and Kauffman polynomial.

Kauffman has been a prominent leader in Knot Theory, one of the most active research areas in mathematics today. His discoveries include a state sum model for the Alexander-Conway Polynomial, the bracket state sum model for the Jones polynomial, the Kauffman polyomial and Virtual Knot Theory.

Bracket polynomial

In the mathematical field of knot theory, the bracket polynomial, also known as the "Kauffman bracket", is a polynomial invariant of framed links. Although it is not an invariant of knots or links (as it is not invariant under type I Reidemeister moves), a suitably "normalized" version yields the famous knot invariant called the Jones polynomial. The bracket polynomial plays an important role in unifying the Jones polynomial with other quantum invariants. In particular, Kauffman's interpretation of the Jones polynomial allows generalization to invariants of 3-manifolds.

Kauffman polynomial

The Kauffman polynomial is a 2-variable knot polynomial due to Louis Kauffman. It is defined as

:$F(K)(a,z)=a^\{-w(K)\}L(K),$

where $w(K)$ is the writhe and $L(K)$ is a regular isotopy invariant which generalizes the bracket polynomial.

Quantum topology

Quantum topology is the interdisciplinary study of a number of new invariants of manifolds, links, and related objects, as well as some possible frameworks for them. It has established many unexpected, exciting relations between low-dimensional topology and various areas of mathematics and theoretical physics. It was born through a few independent contributions in the early 1980s and quickly ramified into a wide variety of techniques at several levels of abstraction and generality. [http://www.ams.org/notices/200410/2005-jsrc.pdf.]

Publications

Louis H. Kauffman is author of several monographs on knot theory and mathematical physics. His publication list numbers over 170. Books:
* 1987, [http://www.math.uic.edu/~kauffman/KNOTS.pdf "On Knots"] , Princeton University Press 498 pp.
* 1993, "Quantum Topology (Series on Knots & Everything)", with Randy A. Baadhio, World Scientific Pub Co Inc, 394 pp.
* 1994, "Temperley-Lieb Recoupling Theory and Invariants of 3-Manifolds", with Sostenes Lins, Princeton University Press, 312 pp.
* 1995, "Knots and Applications (Series on Knots and Everything, Vol 6)"
* 1995, "The Interface of Knots and Physics: American Mathematical Society Short Course January 2-3, 1995 San Francisco, California (Proceedings of Symposia in Applied Mathematics)", with the American Mathematical Society.
* 1998, "Knots at Hellas 98: Proceedings of the International Conference on Knot Theory and Its Ramifications", with Cameron Gordon, Vaughan F. R. Jones and Sofia Lambropoulou,
* 1999, "Ideal Knots", with Andrzej Stasiak and Vsevolod Katritch, World Scientific Publishing Company, 414 pp.
* 2001, "Knots and Physics (Series on Knots and Everything, Vol. 1)", World Scientific Publishing Company, 788 pp.
* 2002, "Hypercomplex Iterations: Distance Estimation and Higher Dimensional Fractals (Series on Knots and Everything , Vol 17)", with Yumei Dang and Daniel Sandin.
* 2006, "Formal Knot Theory", Dover Publications, 272 pp.
* 2007, "Intelligence of Low Dimensional Topology 2006", with J. Scott Carter and Seiichi Kamada.

Articles and papers, a selection:
* 2001, [http://www2.math.uic.edu/~kauffman/CHK.pdf The Mathematics of Charles Sanders Peirce] , in: "Cybernetics & Human Knowing", Vol.8, no.1–2, 2001, pp. 79–110

References

External links

* [http://www2.math.uic.edu/~kauffman/ Louis Kauffman] Homepage at uic.edu.
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