Geometry, Topology and Arithmetic of Character Varieties
Por Carlos Florentino (DM, Faculdade de Ciências da ULisboa).
Abstract: Given a finitely generated group F and a complex reductive Lie group G, the G-character variety of F, denoted $X_F G=Hom(F,G)//G$, is typically a singular algebraic variety with interesting geometric and topological properties and appears in many contexts within Mathematical-Physics.