Stephen Lichtenbaum

Stephen Lichtenbaum ( born 1939 in Brooklyn ) is an American mathematician who deals with algebraic geometry, algebraic number theory and algebraic K- theory.

Light tree studied at Harvard University ( bachelor's degree "summa cum laude" in 1960), where he received his doctorate in 1964 ( Curves over discrete valuation rings, American Journal of Mathematics Bd.90, 1968, S.380 -405 ). After that, he was a lecturer at Princeton University, he was from 1967 Assistant Professor at Cornell University, where he became Associate Professor in 1969 and Professor in 1973. 1979-1982 he was there the Faculty Board. Since 1990 he has been Professor at Brown University, where he was Chairman from 1994 to 1997 the faculty. He has been a visiting scientist at the Institute for Advanced Study (1973, 1984), the University of Paris (VI, XI, VII, XIII), the IHES (1974, 1977, 1982/83, 1987/88, 1997), the MSRI ( 1987), the Isaac Newton Institute ( 1998, 2002 ). Since 2003, he is also an associate professor at the University of Paris Chevalaret.

According to him, the light tree conjecture (from about 1971) on the relationship of the values ​​of the Dedekind are zeta function of number fields at specific sites (negative integers ) and algebraic K-theory benanntund after him and Daniel Quillen these generalized assumptions about the connection between algebraic K- theory Étaler cohomology (partly they were proved in the 1980s by Robert Thomason, further progress as a result of the work of Vladimir Voevodsky for algebraic K- theory).

In 1959 he went to Harvard Putnam Fellow. In 1973/74 he was a Guggenheim Fellow. In 1995 he was co-editor of Documenta Mathematicae. He is a Fellow of the American Mathematical Society.