Inhaltspezifische Aktionen

A Morse Lemma for degenerate critical points of solutions of nonlinear equations in $\R^2$

Massimo Grossi (Rom)

Wann

06.07.2018 von 17:15 bis 18:00 (Europe/Berlin / UTC200)

Wo

Hörsaal (Raum 111, 1. Stock) im Mathematischen Institut, Arndtstraße 2

Termin zum Kalender hinzufügen

iCal

Abstract:

We prove a Morse Lemma for degenerate critical points of a function u which satisfies

 \Delta u=f(u) in B_1,

 where B_1 is the unit ball of R^2. Moreover if u admits only one critical point we prove some result about the nondegeneracy of the maximum of u and the shape of the level sets of u.