11 citations · 18 across the 3 of their papers we have counts for
5 papers
Local strong solutions to a quasilinear degenerate fourth-order thin-film equation
Christina Lienstromberg, Stefan Müller
We study the problem of existence and uniqueness of strong solutions to a degenerate quasilinear parabolic non-Newtonian thin-film equation. Originating from a non-Newtonian Navier…
Planar S-systems: Global stability and the center problem
Balázs Boros, Josef Hofbauer, Stefan Müller +1
S-systems are simple examples of power-law dynamical systems (polynomial systems with real exponents). For planar S-systems, we study global stability of the unique positive equili…
-characterization of symplectic and contact embeddings and Lagrangian rigidity
Stefan Müller
We present a novel -characterization of symplectic embeddings and diffeomorphisms in terms of Lagrangian embeddings. Our approach is based on the shape invariant, which was di…
Helicity of vector fields preserving a regular contact form and topologically conjugate smooth dynamical systems
Stefan Müller, Peter Spaeth
We compute the helicity of a vector field preserving a regular contact form on a closed three-dimensional manifold, and improve results by J.-M. Gambaudo and É. Ghys [GG97] relatin…
Uniform approximation of homeomorphisms by diffeomorphisms
Stefan Müller
We prove that a compactly supported homeomorphism of a smooth manifold of dimension greater or equal to 5 can be approximated uniformly by compactly supported diffeomorphisms if an…