On the extension property of Reifenberg-flat domains

A Lemenant, E Milakis, LV Spinolo - arXiv preprint arXiv:1209.3602, 2012 - arxiv.org
We provide a detailed proof of the fact that any domain which is sufficiently flat in the sense
of Reifenberg is also Jones-flat, and hence it is an extension domain. We discuss various …

A selective review on Mumford–Shah minimizers

A Lemenant - Bollettino dell'Unione Matematica Italiana, 2016 - Springer
This is a review paper on the Mumford-Shah functional, with particular interest in blow-up
limits, low dimensions (2 and 3), and connection with fracture theory. It includes in particular …

Epsilon-regularity for griffith almost-minimizers in any dimension under a separating condition

C Labourie, A Lemenant - Archive for Rational Mechanics and Analysis, 2023 - Springer
In this paper we prove that if (u, K) is an almost-minimizer of the Griffith functional and K is ε-
close to a plane in some ball B⊂ RN while separating the ball B in two big parts, then K is C …

On regularity for griffith almost-minimizers in the plane

M Friedrich, C Labourie, K Stinson - arXiv preprint arXiv:2310.07670, 2023 - arxiv.org
We present regularity results for the crack set of a minimizer for the Griffith fracture energy,
arising in the variational modeling of brittle materials. In the planar setting, we prove an …

Partial regularity for the crack set minimizing the two-dimensional Griffith energy

JF Babadjian, F Iurlano, A Lemenant - arXiv preprint arXiv:1905.10298, 2019 - arxiv.org
In this paper we prove a $\mathcal C^{1,\alpha} $ regularity result for minimizers of the
planar Griffith functional arising from a variational model of brittle fracture. We prove that any …

Spectral stability estimates for the Dirichlet and Neumann Laplacian in rough domains

A Lemenant, E Milakis, LV Spinolo - Journal of Functional Analysis, 2013 - Elsevier
In this paper we establish new quantitative stability estimates with respect to domain
perturbations for all the eigenvalues of both the Neumann and the Dirichlet Laplacian. Our …

Regularity of the singular set for Mumford-Shah minimizers in near a minimal cone

A Lemenant - Annali della Scuola Normale Superiore di Pisa-Classe …, 2011 - numdam.org
We prove that if (u, K) is a minimizer of the Mumford-Shah functional in an open set of R3,
and if x∈ K and r> 0 are such that K is close enough to a minimal cone of type P (a plane), Y …

The stress intensity factor for non-smooth fractures in antiplane elasticity

A Chambolle, A Lemenant - Calculus of Variations and Partial Differential …, 2013 - Springer
Motivated by some questions arising in the study of quasistatic growth in brittle fracture, we
investigate the asymptotic behavior of the energy of the solution u of a Neumann problem …

Quantitative stability for the first Dirichlet eigenvalue in Reifenberg flat domains in RN

A Lemenant, E Milakis - Journal of mathematical analysis and applications, 2010 - Elsevier
In this paper we prove that if Ω and Ω′ are close enough for the complementary Hausdorff
distance and their boundaries satisfy some geometrical and topological conditions then …

[PDF][PDF] A stability result for nonlinear Neumann problems in Reifenberg flat domains in

A Lemenant, E Milakis - 2011 - projecteuclid.org
Introduction Page 1 Publ. Mat. 55 (2011), 413–432 A STABILITY RESULT FOR NONLINEAR
NEUMANN PROBLEMS IN REIFENBERG FLAT DOMAINS IN RN Antoine Lemenant and …