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Schwerpunkt Reelle Geometrie und Algebra > Vorträge


Vortrag im Schwerpunkt Reelle Geometrie und Algebra


Donnerstag, 22. November 2007, um 17:00 Uhr in F426 (Kolloquium)
Ilia Itenberg (Strasbourg)
Tropical Geometry and Enumeration of Real Rational Curves

ABSTRACT: The purpose of the talk is to make an introduction to tropical geometry and to present several applications of tropical geometry to complex and real enumerative problems. Tropical geometry has deep relations with many branches of mathematics. An important link between the complex algebraic world and the tropical one is given by Mikhalkin's correspondence theorem. We discuss various versions of correspondence theorems, which together with Welschinger's discovery of a real analog of genus zero Gromov-Witten invariants produce new results on enumeration of real rational curves.

zuletzt geändert am 21. November 2007