S. Hencl

collaborators

3 papers

math.CV2026

Bounded Continuous weak quasiregular mappings that fail to be quasiregular

Stanislav Hencl, Yi Ru-Ya Zhang

We show that, in dimensions $n \geq 3$ , continuity and boundedness do not restore the Sobolev regularity conjecture of Iwaniec and Martin for weakly quasiregular mappings below the…

math.FA2026

Ciarlet NeÄas condition in fractional Sobolev spaces

Stanislav Hencl, JaromÃr Mielec, Kaushik Mohanta

Let $s \in (\frac{n}{n + 1}, 1)$ , $I^c ◯ \subset R^{n}$ be an open set and let $f \in W^{s, n / s} (I^c ◯, R^{n})$ be mapping with positive distributional Jacobian $J_{f} > 0$ whi…

math.FA2025

Ball-Evans approximation problem: recent progress and open problems

Stanislav Hencl

In this paper we give a short overview about the Ball-Evans approximation problem, i.e. about the approximation of Sobolev homeomorphism by a sequence of diffeomorphisms (or piecew…

Bounded Continuous weak quasiregular mappings that fail to be quasiregular

Ciarlet NeÄas condition in fractional Sobolev spaces

Ball-Evans approximation problem: recent progress and open problems

Ciarlet NeÄas condition in fractional Sobolev spaces