Lower estimates in real algebraic geometry
Vortrag von Prof. Dr. Andrei Teleman
Sprecher eingeladen von: Prof. Dr. Christian Okonek
Datum: 21.11.11 Zeit: 13.15 - 14.45 Raum: Y27H25
Many enumerative problems in real algebraic geometry reduce to counting the zeros of a section in a real algebraic bundle over a real algebraic manifold. Using the concept of relatively orientable bundle, one can obtain in many cases a lower bound for the number of zeros in terms of the absolute value of the Euler number of the bundle. We give several explicit applications of this principle.