Aleksis Koski

activity

20152026

most citedNonlinear Beltrami operators, Schauder estimates and bounds for the Jacobian

14 citations · 27 across the 14 of their papers we have counts for

collaborators

Showing 2023Show all

2 papers · 1 filter

math.AP2023

The local Burkholder functional, quasiconvexity and Geometric Function Theory

Kari Astala, Daniel Faraco, André Guerra +2

We show that the local Burkholder functional $B_{K}$ is quasiconvex. In the limit of $p$ going to 2 we find a class of non-polyconvex functionals which are quasiconvex on th…

math.CV2023

Extension of planar Hölder homeomorphisms

Stanislav Hencl, Aleksis Koski

Let $α$ \in (0; 1). We show that any $α$ -Hölder homeomorphism from the unit circle in the plane to the plane can be extended to an $α$ -Hölder homeomorphism from the whole unit disc…