Tomas Bajbar - FB Mathematik und Statistik

Universität Konstanz
Fachbereich
Mathematik und Statistik
Schwerpunkt
Reelle Geometrie und Algebra
Einladung
Im Oberseminar Reelle Geometrie und Algebra hält
Tomas Bajbar
(Karlsruher Institut für Technologie)
am Freitag, 17.06.2016, einen Vortrag zum Thema:
On Globally Diffeomorphic Polynomial Maps via
Newton Polytopes and Circuit Numbers
Der Vortrag findet um 13:30 Uhr in F426 statt.
Alle Interessenten sind herzlich eingeladen.
Abstract: In this article we analyze the global diffeomorphism property of polynomial maps F : Rn → Rn by studying the properties of the Newton polytopes at
infinity corresponding to the sum of squares polynomials kF k22 . This allows us to
identify a class of polynomial maps F for which their global diffeomorphism property on Rn is equivalent to their Jacobian determinant det JF vanishing nowhere
on Rn . In other words, we identify a class of polynomial maps for which the Real
Jacobian Conjecture, which was proven to be false in general, still holds.
Sebastian Gruler
Koordinator Oberseminar