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Seminar on Analysis, Differential Equations and Mathematical Physics
29 января 2026 г. 18:00, г. Ростов-на-Дону, online


Weakly Lipschitz mappings in higher dimensions

A. Golberg

Holon Academic Institute of Technology

Аннотация: In one dimension, Lipschitz continuity serves as a natural bridge between continuous differentiability and absolute continuity. However, this relatively simple picture becomes significantly more intricate in higher dimensions. Despite this added complexity, Lipschitz mappings retain a wealth of important properties and find numerous applications. Classical results, such as the McShane and Kirszbraun extension theorems, alongside the preservation of Hausdorff dimension, underscore the significance of these mappings. This talk delves into the fascinating and multifaceted theory of Lipschitz functions in the higher-dimensional setting.
We will introduce a weakly Lipschitz condition and establish that such a mapping is absolutely continuous on almost all lines parallel to the coordinate axes (an ACL-mapping) and belongs to the Sobolev class $W_{loc}^{1,n}$. Furthermore, we demonstrate that any metrically quasiconformal mapping is weakly Lipschitz in this sense.

Язык доклада: английский

Website: https://msrn.tilda.ws/sl


© МИАН, 2026