Calculus of Variations and Geometric Measure Theory

G. Fusco

Variational analysis of discrete Dirichlet problems in periodically perforated domains

created by fusco on 11 Mar 2025
modified on 21 Oct 2025

[BibTeX]

preprint

Inserted: 11 mar 2025
Last Updated: 21 oct 2025

Year: 2025

ArXiv: 2503.06723 PDF

Abstract:

In this paper we study the asymptotic behavior of a family of discrete functionals as the lattice size, $\varepsilon>0$, tends to zero. We consider pairwise interaction energies satisfying $p$-growth conditions, $p<d$, $d$ being the dimension of the reference configuration, defined on discrete functions subject to Dirichlet conditions on a $\delta$-periodic array of small squares of side $r_{\delta}\sim \delta^{d/d-p}$. Our analysis is performed in the framework of $\Gamma$-convergence and we prove that, in the regime $\varepsilon=o(r_{\delta})$, the discrete energy and their continuum counterpart share the same $\Gamma$-limit and the effect of the constraints leads to a capacitary term in the limit energy as in the classical theory of periodically perforated domains for local integral functionals.