Calculus of Variations and Geometric Measure Theory
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E. Le Donne - S. Li - T. Moisala

Gateaux differentiability on infinite-dimensional Carnot groups

created by ledonne on 20 Dec 2018

[BibTeX]

Submitted Paper

Inserted: 20 dec 2018

Year: 2018

Abstract:

This paper contributes to the generalization of Rademacher's differentiability result for Lipschitz functions when the domain is infinite dimensional and has nonabelian group structure. We introduce the notion of metric scalable groups which are our infinite-dimensional analogues of Carnot groups. The groups in which we will mostly be interested are the ones that admit a dense increasing sequence of (finite-dimensional) Carnot subgroups. In fact, in each of these spaces we show that every Lipschitz function has a point of G\{a}teaux differentiability. We provide examples and criteria for when such Carnot subgroups exist. The proof of the main theorem follows the work of Aronszajn and Pansu.

Tags: GeoMeG

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