Configuration Spaces: Geometry, Combinatorics and Topology

YOUNG SEMINAR: Multiarrangements and Critical Points

speaker: Mehdi Garrousian (University of Western Ontario, Department of Mathematics)

abstract: A multiarrangements is a natural generalization of hyperplane arrangements where we associate multiplicities to each yperplane. The aim of this talk is to give a generalization of some parts of the theory of critical points of simple arrangements to multiarrangements. The main object is the logarithmic ideal of a multiarrangement which characterizes the freeness of the multiarrangements similar to the simple case. We will also explain the geometry of the zero locus of this ideal and present a complex which turns to be free resolution in case of free multiarrangements.

timetable:
Thu 10 Jun, 18:00 - 19:00, Sala Conferenze Centro De Giorgi
<< Go back