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14–17 Jul 2026
Palazzo del Castelletto
Europe/Rome timezone

CRM SECRETARY

Contribution List

17 out of 17 displayed
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  1. 22. Uniform approximability of almost isometric maps
    Sergio Conti
    14/07/2026, 14:30

    Given a Sobolev map from a Lipschitz subset U of an oriented, compact manifold M into another oriented, compact manifold N of the same dimension, we construct an approximation by a C^{1,\alpha} map with a uniform bound on its W^{2,m} norm, for every m>1. The W^{1,p}-distance between the approximation and the original map is controlled in terms of the L^p-deviation from being an isometry, with...

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  2. 21. Topological and geometric defects in discrete systems: Fractional vortices and partial dislocations" (Part I)
    Marco Cicalese (TU Munich)
    14/07/2026, 15:20
  3. 18. Topological and geometric defects in discrete systems: Fractional vortices and partial dislocations" (Part II)
    Annika Bach (Eindhoven University of Technology)
    14/07/2026, 16:40
  4. 24. Gamma-convergence and stochastic homogenization for functionals in the A-free setting
    Gianni Dal Maso (SISSA)
    15/07/2026, 10:00

    We obtain a compactness result for Gamma-convergence of integral functionals defined on A-free vector fields. This is used to study homogenization problems for these functionals without periodicity assumptions. More precisely, we prove that the homogenized integrand can be obtained by taking limits of minimum values of suitable minimization problems on large cubes, when the side length of...

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  5. 19. Wrinkling in the Lamé problem: a Γ-convergence approach
    Roberta Marziani (Università degli studi di Siena)
    15/07/2026, 10:50

    In this talk I will discuss the formation of wrinkling patterns in a thin elastic annulus subjected to radial stretching within the framework of the Föppl–von Kármán theory. In the limit of vanishing thickness, azimuthal compression develops in an inner region of the sheet, leading to highly oscillatory wrinkle patterns.

    After subtracting the relaxed membrane energy and performing a...

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  6. 23. Quasistatic cohesive-type crack growth
    Vito Crismale (Sapienza Università di Roma)
    15/07/2026, 12:10

    With Manuel Friedrich (JKU Linz), we proved the existence of globally stable quasistatic evolutions for cohesive-type crack energies in the SBVp framework.
    The crack path is not prescribed a priori nor subject to any topological restriction, and the result is valid in any dimension. This generalizes to a cohesive setting the existence result by Francfort and Larsen in 2003.

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  7. 33. Skyrmionic bubbles in ultrathin ferromagnetic films
    Cyrill Muratov (Università di Pisa)
    15/07/2026, 14:30

    Magnetic skyrmions are tiny whirls of magnetization, in which the magnetization vector locally reverses its preferred orientation and whose stability is due to a delicate balance of forces acting at nanoscale. In this talk, I will discuss the situation in which these magnetization states take the shape of skyrmionic bubbles in ultrathin ferromagnetic films, whereby the skyrmion consists of a...

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  8. 31. Currents with coefficients in a group and branched transport problems
    Annalisa Massaccesi (Università degli studi di Padova)
    15/07/2026, 15:20

    In this seminar I will review the theory of flat G-chains, as they were introduced by H. W. Fleming in 1966, and currents with coefficients in groups with the aim of showing some recent applications to variants of the branched optimal transport. One development of the theory concerns its application to the Steiner tree problem and other minimal network problems which are related with a...

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  9. 32. On the Minimisation of Nonlocal Interaction Energies
    Maria Giovanna Mora (Università di Pavia)
    15/07/2026, 16:40

    Nonlocal interaction energies play a central role in describing the collective behaviour of large particle systems in a wide range of applications. In this lecture we will focus on interactions that are short-range repulsive and long-range attractive. We will review the key results on the existence and uniqueness of minimisers, and present their explicit characterisation in the classical case...

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  10. 28. Is brittle fracture broken?
    Gilles Francfort (Flatiron Institue)
    16/07/2026, 10:00

    After nearly thirty years, the ``variational approach to fracture" is very much alive both in the mechanics and mathematical communities. Yet a host of issues are emerging that obfuscate the elegance of the original theory.

    I will review a few of those, show the shortcomings of the existing sharp theories and the additional hurdles introduced by the phase field approximations. I will...

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  11. 27. Stochastic homogenization of fractional obstacle problems
    Matteo Focardi (Università degli studi di Firenze)
    16/07/2026, 10:50
  12. 35. Homogenisation of droplets in liquid-liquid phase-transitions
    Caterina Ida Zeppieri (Universität Münster)
    16/07/2026, 12:10

    We rigorously derive a sharp-interface model for the coexistence of multiple liquid phases in a domain containing a random distribution of small droplets, within which a prescribed phase is enforced. Starting from a diffuse-interface model of Modica–Mortola type, we prove that, under very general assumptions on the droplet distribution (modelled probabilistically by a stationary marked point...

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  13. 25. Asymptotic expansion of the relative s-fractional perimeter as s->0.
    Lucia De Luca (CNR, Roma)
    16/07/2026, 14:30

    We prove a first-order Gamma-convergence result for the relative s-fractional perimeter, as s->0, with respect to a given bounded set and prescribed exterior data. We investigate the robustness of our approach under perturbations of the exterior data and in the presence of volume constraints. We then use the Gamma-convergence expansion to study the asymptotic behavior of s-minimal sets as...

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  14. 26. Beating filaments: from eukaryotic cilia to photo-responsive rods
    Antonio De Simone (Scuola Superiore Sant'Anna)
    16/07/2026, 15:50

    Spontaneous oscillations are observed across many natural and artificial systems. We present a comparative analysis of the chemo-mechanical mechanisms that drive spontaneous oscillations in two distinct active filamentous structures: photo-chemically deformable liquid crystal elastomer (LCE) rods and ATP-powered eukaryotic cilia.
    Using the unifying framework of active planar rods, we develop...

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  15. 20. Convergence of entropic transport energies
    Antonin Chambolle (Université Paris Dauphine-PSL)
    17/07/2026, 10:00
  16. 16. Quasiconvexity in the Riemannian setting
    Carlo Mantegazza (Università di Napoli Federico II)
    17/07/2026, 10:50
  17. 17. The structure of normal currents and regularity of transport operators
    Giovanni Alberti (Università di Pisa)
    17/07/2026, 12:00