The Unity of Mathematics: In Honor of the Ninetieth Birthday of I.M. Gelfand

Tribute to the vision and legacy of Israel Moiseevich Gel`fand
Written by leading mathematicians, these invited papers reflect the unity of mathematics as a whole, with particular emphasis on the many connections among the fields of geometry, physics, and representation theory
Topics include conformal field theory, K-theory, noncommutative geometry, gauge theory, representations of infinite-dimensional Lie algebras, and various aspects of the Langlands program