Workshop


Regularity Theory for Free Boundary and Geometric Variational Problems V


Cervia, Hotel Club Dante, 3-7 June 2025


Support


This workshop is financed by the project
ERC VaReg (European Union - Horizon 2020).


Description


        This workshop is dedicated to the recent advances in the theories of

Free Boundary Problems and Minimal Surfaces

which include problems and combine tools from different fields as for instance PDEs, Calculus of Variations and Geometric Analysis.

The main topic is the regularity and the fine structure of geometric objects (free boundaries, minimal surfaces, free interfaces) obtained trough the minimization of variational functionals. The description of the local structure of these minima is a common objective for both the fields of Free Boundary Problems and Minimal Surfaces and the techniques developed in this context have found application to problems from different areas.

The workshop brings together young researchers and leading experts in these fields, the focus being on the recent important breakthroughs in the regularity of the free boundaries and minimal surfaces, in particular, on the formation and the structure of singularities.


Participants

Alessandro Audrito (Politecnico di Torino)

Costante Bellettini (University College London)

Giulia Bevilacqua (Università di Pisa)

Dorin Bucur (Université de Savoie)

Matteo Carducci (Scuola Normale Superiore - Pisa)

Roberto Colombo (EPFL)

Paolo De Donato (Unversità di Roma - La Sapienza)

Cristiana De Filippis (Università di Parma)

Antonio De Rosa (Bocconi University)

William Feldman (Utah University)

Lorenzo Ferreri (Scuola Normale Superiore - Pisa)

Gabriele Fioravanti (Università di Torino)

Federico Franceschini (IAS Princeton)

André Guerra (University of Cambridge)

Jonas Hirsch (Universität Leipzig)

Minyoung Jeong (University of California San Diego)

Daniel Ketover (Rutgers University)

Sunghan Kim (Uppsala University)

Dennis Kriventsov (Rutgers University)

Federico Lai (Università di Pisa)

Dario Mazzoleni (Università di Pavia)

Riccardo Moraschi (Università di Pavia)

Michael Novack (Louisiana State University)

Roberto Ognibene (Università di Milano-Bicocca)

Filippo Paiano (Università di Pisa)

Maria Antonietta Palladino (Scuola Normale Superiore - Pisa)

Davide Parise (University of California San Diego)

Daniel Restrepo (Johns Hopkins University)

Andrea Rocca (Università di Pisa)

Xavier Ros-Oton (Universitat de Barcelona)

Giovanni Siclari (Scuola Normale Superiore - Pisa)

Anna Skorobogatova (ETH Zürich)

Mariana Smit Vega Garcia (Western Washington University)

Nicola Soave (Università di Torino)

Luca Spolaor (University of California San Diego)

Salvatore Stuvard (Università di Milano)

Riccardo Tione (Università di Torino)

Xavier Tolsa (Universitat Autonoma de Barcelona)

Yoshihiro Tonegawa (Tokyo Institute of Technology)

Clara Torres-Latorre (ICMAT)

Giorgio Tortone (Università di Torino)

Bozhidar Velichkov (Università di Pisa)

Gianmaria Verzini (Politecnico di Milano)

Stefano Vita (Università di Pavia)

Yuanfan Wang (University of California San Diego)

Marvin Weidner (Universitat de Barcelona)

Georg Weiss (University of Duisburg-Essen)

Hui Yu (National University of Singapore)

Konstantinos Zemas (Hausdorff Center - Bonn)

Zihui Zhao (Johns Hopkins University)

Jonathan Zhu (University of Washington)

Schedule

Tuesday 3 June

09:00-09:50   Georg Weiss

A mountain pass approach to the existence of gravity water waves

10:00-10:50   Cristiana De Filippis

μ-ellipticity and nonautonomous integrals

11:30-12:20   Xavier Ros-Oton

Boundary regularity for kinetic equations

15:00-15:50   Lorenzo Ferreri

On the boundary branching set of the one-phase problem

16:10-17:00   André Guerra

Harmonic maps and the vectorial obstacle problem

Wednesday 4 June

09:00-09:50   Xavier Tolsa

The two-phase problem for harmonic measure in VMO and a related counterexample

10:00-10:50   Mariana Smit Vega Garcia

Fractional parabolic theory as a high-dimensional limit of fractional elliptic theory

11:30-12:20   Jonathan Zhu

Capillary minimal surfaces in spherical caps

14:00-14:50   Sunghan Kim

Energy minimizing maps under thin constraints

15:00-15:50   Daniel Ketover

The Smale conjecture for RP3 and minimal surfaces

16:10-17:00   Clara Torres-Latorre

The free boundary in the Stefan problem

Thursday 5 June

09:00-09:50   Dorin Bucur

Spectral optimization problems with Neumann boundary conditions

10:00-10:50   William Feldman

One- and two-phase minimizing free boundaries in heterogeneous media

11:30-12:20   Federico Franceschini

Solutions to the thin obstacle problem with non-2D frequency

Friday 6 June

09:00-09:50   Hui Yu

Minimizing cones in the Alt-Caffarelli-Phillips problem

10:00-10:50   Michael Novack

Plateau's problem for soap films with positive volume: new directions

11:30-12:20   Dennis Kriventsov

Parabolic free transmission problems

15:00-15:50   Marvin Weidner

Regularity for the nonlocal one-phase problem

16:10-17:00   Anna Skorobogatova

Fine structure of two-dimensional mod(q) area-minimizing hypersurfaces near branch points

Saturday 7 June

09:00-09:50   Yoshihiro Tonegawa

The epsilon-regularity theorem for Brakke flows near triple junctions

10:00-10:50   Dario Mazzoleni

Free boundary regularity for a spectral optimal partition problem
with volume and inclusion constraints


Abstracts


Book of abstracts


Organizers: Giulia Bevilacqua, Roberto Ognibene, Luca Spolaor and Bozhidar Velichkov

Contacts: giulia.bevilacqua[at]dm.unipi.it, roberto.ognibene[at]unimib.it, lspolaor[at]ucsd.edu, bozhidar.velichkov[at]unipi.it