Tel Aviv University Colloquium Hello everyone, The next colloquium talk will be held on Monday, 21/3/2011, 12:15, Schreiber 006, Tel Aviv University. The speaker is Maxim Kazarian (Moscow Steklov Institute and Independent University) and the title of his talk is Universal polynomials and enumerative geometry The abstract is given below. Tea and coffee at 12:00, same room. Hope to see you there. For information about future colloquiua, see <http://www.math.tau.ac.il/~klartagb/colloq_2010.html> You are all welcome to suggest colloquium speakers, especially for the next academic year. Yours, Bo'az ------------------------- Abstract: Differentiable mappings of smooth manifolds possess singularities. The cohomology class Poincare dual to the locus of particular singularity type is expressed as a universal polynomial (known as the Thom polynomial) in the characteristic classes of manifolds participating in the mapping. The very existence of such polynomial provides also a way of its explicit computation. This leads to an efficient solution of many enumerative problems of complex projective enumerative geometry. We will discuss details of this approach to enumerative geometry as well as some variations of the Thom polynomial theory including enumeration of isolated hypersurface singularities, singularities of wave fronts, and multisingularities of various kinds. --------------------------------------------------------- Technion Math Net-2 (TECHMATH2) Editor: Michael Cwikel <techm@math.technion.ac.il> Announcement from: <klartagb@post.tau.ac.il>