On the energy scaling behaviour of a singularly perturbed tartar square
In this article we derive an (almost) optimal scaling law for a singular perturbation problem associated with the Tartar square. As in [Win97, Chi99], our upper bound quantifies the well-known construction which is used in the literature to prove flexibility of the Tartar square in the sense of flexibi...
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| Main Authors: | , |
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| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
19 Apr 2021
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| In: |
Arxiv
Year: 2021, Pages: 1-23 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: http://arxiv.org/abs/2104.05496
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| Author Notes: | Angkana Rüland and Antonio Tribuzio |
| Summary: | In this article we derive an (almost) optimal scaling law for a singular perturbation problem associated with the Tartar square. As in [Win97, Chi99], our upper bound quantifies the well-known construction which is used in the literature to prove flexibility of the Tartar square in the sense of flexibility of approximate solutions to the differential inclusion. The main novelty of our article is the derivation of an (up to logarithmic powers matching) ansatz free lower bound which relies on a bootstrap argument in Fourier space and is related to a quantification of the interaction of a nonlinearity and a negative Sobolev space in the form of “a chain rule in a negative Sobolev space”. Both the lower and the upper bound arguments give evidence of the involved “infinite order of lamination”. |
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| Item Description: | Gesehen am 27.05.2021 |
| Physical Description: | Online Resource |