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Regularity for the optimal compliance problem with length penalization

Chambolle, Antonin; Lamboley, Jimmy; Lemenant, Antoine; Stepanov, Eugene (2017), Regularity for the optimal compliance problem with length penalization, SIAM Journal on Mathematical Analysis, 49, 2, p. 1166–1224. 10.1137/16M1070578

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Type
Article accepté pour publication ou publié
Date
2017
Journal name
SIAM Journal on Mathematical Analysis
Volume
49
Number
2
Publisher
Society for Industrial and Applied Mathematics
Pages
1166–1224
Publication identifier
10.1137/16M1070578
Metadata
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Author(s)
Chambolle, Antonin cc
Lamboley, Jimmy
Lemenant, Antoine
Stepanov, Eugene
Abstract (EN)
We prove some regularity results for a connected set S in the planar domain O, which minimizes the compliance of its complement O\S, plus its length. This problem, interpreted as to find the best location for attaching a membrane subject to a given external force f so as to minimize the compliance, can be seen as an elliptic PDE version of the average distance problem/irrigation problem (in a penalized version rather than a constrained one), which has been extensively studied in the literature. We prove that minimizers consist of a finite number of smooth curves meeting only by three at 120 degree angles, containing no loop, and possibly touching the boundary of the domain only tangentially. Several new technical tools together with the classical ones are developed for this purpose.
Subjects / Keywords
compliance; shape optimisation; regularity; Mumford-Shah

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