2 papers
math.AP2021
Bifurcations from degenerate orbits of solutions of nonlinear elliptic systems
Anna Gołębiewska, Joanna Kluczenko, Piotr Stefaniak
The aim of this paper is to study global bifurcations of non-constant solutions of some nonlinear elliptic systems, namely the system on a sphere and the Neumann problem on a ball.…
math.AP2017
Bifurcations from the orbit of solutions of the Neumann problem
Anna Gołębiewska, Joanna Kluczenko, Piotr Stefaniak
The purpose of this paper is to study weak solutions of a nonlinear Neumann problem considered on a ball. Assuming that the potential is invariant, we consider an orbit of critical…