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<h2>cvgmt weekly bulletin</h2>
<p><i>Weekly bulletin for <a href="http://cvgmt.sns.it">http://cvgmt.sns.it</a></i></p>
<h2>Summary</h2>
<p><b>Seminars by:</b> <a href='/seminar/924/'>Baumgartner</a>, <a href='/seminar/925/'>Zanoni</a>, <a href='/seminar/926/'>Bisterzo</a>, <a href='/seminar/927/'>Cooper</a>, <a href='/seminar/928/'>Weng</a></p>
<p><b>New papers by:</b> <a >Poiatti</a>, <a href='/person/4241/' >Gennaioli</a>, <a href='/person/2068/' >Carioni</a>, <a href='/person/3619/' >Kubin</a>, <a >Hraivoronska</a>, <a href='/person/5544/' >Prade</a>, <a href='/person/2217/' >Marconi</a>, <a href='/person/3371/' >Topaloglu</a>, <a >Schönberger</a>, <a href='/person/179/' >Celada</a>, <a href='/person/183/' >Cicalese</a>, <a href='/person/185/' >Mucci</a>, <a href='/person/4539/' >Iglesias</a>, <a href='/person/5447/' >Elbar</a>, <a href='/person/201/' >Santambrogio</a>, <a >Julin</a>, <a href='/person/2260/' >Stefani</a>, <a href='/person/217/' >Fusco</a>, <a href='/person/5212/' >Talamini</a>, <a href='/person/235/' >Bonacini</a>, <a >Leonardo Del Grande</a>, <a >Kirisits</a>, <a >Kimmel</a>, <a >Baradat</a>, <a href='/person/2169/' >Dweik</a>, <a href='/person/1023/' >Ancona</a></p>
<p><b>Modified papers by:</b> <a href='/person/4867/'>Sciaraffia</a>, <a href='/person/132/'>Fonseca</a>, <a href='/person/260/'>Goldman</a>, <a href='/person/263/'>Mantegazza</a>, <a >León Quirós</a>, <a >Chambolle</a>, <a href='/person/2573/'>Ferreira</a>, <a href='/person/26/'>Stepanov</a>, <a href='/person/2331/'>Caponi</a>, <a href='/person/4255/'>Caselli</a>, <a href='/person/1826/'>Pluda</a>, <a href='/person/3364/'>Nobili</a>, <a href='/person/184/'>Davoli</a>, <a href='/person/185/'>Mucci</a>, <a href='/person/4539/'>Iglesias</a>, <a >Khajavirad</a>, <a href='/person/2260/'>Stefani</a>, <a href='/person/1753/'>De Rosa</a>, <a >Huesmann</a>, <a href='/person/95/'>Giannetti</a>, <a href='/person/1642/'>Crismale</a>, <a href='/person/1259/'>Trevisan</a>, <a href='/person/117/'>Paolini</a>, <a href='/person/3317/'>Benatti</a>, <a href='/person/119/'>Novaga</a>, <a href='/person/2169/'>Dweik</a>, <a href='/person/4219/'>Oronzio</a></p>
<h2>News</h2>
<h3><a href='/news/119/'>server update</a></h3>
<div style="font-size: smaller;"><p>The code of CVGMT has been upgraded.
If you experience any anomaly please leave a note to <a href='mailto:cvgmt.staff@sns.it'>cvgmt.staff@sns.it</a>
</p>
<p>Many thanks to Andrea Mennucci who performed the administrative tasks to update the configuration on the host.</p>
</div>
<h2>Events next week</h2>
<ul>
<li><p>
<b><a href='/event/937/'>Variational models in Materials Science-III</a></b><br />
Mon 24 February 2025 - Wed 26 February 2025<br />
University of Naples Federico II, Accademia Pontaniana<br />
</p></li>
</ul>
<h2>Seminars next week</h2>
<h3>Fri 28 February 2025</h3><ul>
<li><p>
Alexander Sahn Baumgartner: <b><a href='/seminar/924/'>Codings for Dynamical Systems</a></b><br />
Centro de Giorgi, Sala Conferenze, 08:30<br />
</p>
<div style="font-size: smaller;"><p>The first part of the talk aims to provide a short introduction to the field of dynamical systems to a broad audience. A few examples are
provided as well as ways to ‘encode’ their chaotic behaviors using mathematically tractable objects called subshifts of finite type. Time
permitting, I will discuss how I applied generalisations of these techniques to certain flows with chaotic behavior.</p>
</div>
</li>
<li><p>
Andrea Zanoni: <b><a href='/seminar/925/'>Parameter estimation and uncertainty propagation for stochastic and deterministic systems</a></b><br />
Centro de Giorgi, Sala Conferenze, 09:15<br />
</p>
<div style="font-size: smaller;"><p>We introduce some examples of inverse and forward problems, and we consider challenges that may arise and possible solutions.
Specifically, we focus on inference for stochastic models and uncertainty propagation for computationally expensive deterministic
systems. First, using a maximum likelihood approach, we estimate unknown parameters in stochastic differential equations from
observed trajectories. We address challenges like model misspecification, lack of information, and discrete time observations, proposing
suitable estimators. Second, we approximate expectations of quantities of interest of expensive models, where Monte Carlo methods are
unfeasible. Combining multifidelity approaches with dimensionality reduction techniques, we provide estimators with reduced variance
without increasing the cost. The effectiveness of our methods is demonstrated through numerical experiments.</p>
</div>
</li>
<li><p>
Andrea Bisterzo (Sapienza Università di Roma): <b><a href='/seminar/926/'>Rigidity of an overdetermined heat equation and minimal helicoids in space-forms</a></b><br />
Centro de Giorgi, Sala Conferenze, 10:00<br />
</p>
<div style="font-size: smaller;"><p>In the seminal paper of 1995, J. C. C. Nitsche proved that if a domain of R<sup>3</sup> is uniformly dense in its boundary, then the boundary has
to be a plane or a right helicoid, closing an open problem proposed by G. Cimmino in 1932. This result has since inspired a rich line
of research on rigidity phenomena for overdetermined differential problems in possibly unbounded domains. The aim of this talk is
to present an ongoing work in collaboration with Professor Alessandro Savo, in which we characterize embedded minimal helicoids
and totally geodesic hypersurfaces in three-dimensional space-forms through the concept of “constant boundary temperature”, an
overdetermined condition involving the Cauchy problem for the heat equation.</p>
</div>
</li>
<li><p>
George Cooper: <b><a href='/seminar/927/'>Moduli Spaces in Algebraic Geometry: an Introduction</a></b><br />
Centro de Giorgi, Sala Conferenze, 11:15<br />
</p>
<div style="font-size: smaller;"><p>In this talk, aimed at a non-specialist audience, we introduce the concept of moduli in algebraic geometry, explain why algebraic
geometers are interested in the study of moduli spaces, and begin to indicate the challenges involved in proving that moduli spaces exist
in the first place. We also begin to explain how the notion of stability in algebraic geometry is related to the existence of moduli spaces,
focusing in particular on the moduli space of semistable vector bundles on a smooth projective algebraic curve. At the end of the talk I
will briefly report on work in progress, joint with L. Modin, about the existence of moduli spaces of unstable objects in Abelian categories,
generalising results of Jackson, Hoskins—Jackson and Qiao concerning the existence of moduli spaces of unstable coherent sheaves on
projective varieties, and of Hamilton concerning the existence of moduli spaces of unstable Higgs bundles on a smooth projective curve.</p>
</div>
</li>
<li><p>
Liangjun Weng (Università degli Studi di Roma Tor Vergata): <b><a href='/seminar/928/'>The capillary Minkowski problem</a></b><br />
Centro de Giorgi, Sala Conferenze, 12:00<br />
</p>
<div style="font-size: smaller;"><p>The classical Minkowski problem is a fundamental inverse problem in convex geometry concerning the prescription of the surface
area measure of a convex body, which was asked by Hermann Minkowski in 1897. This problem has been a key inspiration in the study
of the fully nonlinear PDEs, as in the smooth setting, it reduces to a Monge-Ampère equation on the unit sphere. Through the seminal
works of Nirenberg, Pogorelov, and Cheng-Yau, among many others, this problem has been fully resolved and was a milestone in global
geometry. In this talk, we will discuss a boundary value problem of the classical Minkowski problem, which concerns the existence of a
convex hypersurface with prescribed Gauss-Kronecker curvature and a capillary boundary supported on an obstacle. By formulating this
as a Monge-Ampère equation with a Robin (or Neumann) boundary condition on a spherical cap, we establish the existence of smooth
solutions to this problem.</p>
</div>
</li>
</ul>
<h2>New Papers</h2>
<p><b> Bonacini, Topaloglu:</b> <a href='/paper/6991/'>Stability and minimality of the ball for attractive-repulsive energies with perimeter penalization</a></p>
<p><b> Celada, Mucci:</b> <a href='/paper/6992/'>On generalized Varga materials</a></p>
<p><b> Baradat, Hraivoronska, Santambrogio:</b> <a href='/paper/6993/'>Using Sinkhorn in the JKO scheme adds linear diffusion</a></p>
<p><b> Carioni, Leonardo Del Grande, Iglesias, Schönberger:</b> <a href='/paper/6994/'>Nonlocal perimeters and variations: Extremality and decomposability for
finite and infinite horizons</a></p>
<p><b> Iglesias, Kirisits:</b> <a href='/paper/6995/'>Convective regularization for optical flow</a></p>
<p><b> Iglesias, Kimmel:</b> <a href='/paper/6996/'>Schrödinger Diffusion for Shape Analysis with Texture</a></p>
<p><b> Dweik:</b> <a href='/paper/6997/'>The optimal hole for the best Holder extension</a></p>
<p><b> Elbar, Poiatti:</b> <a href='/paper/6998/'>Weak solutions and sharp interface limit of the anisotropic Cahn-Hilliard equation with disparate mobility and inhomogeneous potential</a></p>
<p><b> Prade:</b> <a href='/paper/6999/'>Boundary Hölder regularity for the fractional Laplacian over Reifenberg flat domains via ABP maximum principle</a></p>
<p><b> Prade:</b> <a href='/paper/7000/'>Boundary regularity for nonlocal elliptic equations over Reifenberg flat domains</a></p>
<p><b> Ancona, Marconi, Talamini:</b> <a href='/paper/7001/'>Liouville type theorem and kinetic formulation for 2x2 systems of conservation laws</a></p>
<p><b> Cicalese, Fusco, Julin, Kubin:</b> <a href='/paper/7002/'>Consistency for the surface diffusion flat flow in three dimensions</a></p>
<p><b> Gennaioli, Stefani:</b> <a href='/paper/7003/'>Sharp conditions for the BBM formula and asymptotics of heat content-type energies</a></p>
<h2>Modified Papers</h2>
<p><b> De Rosa, Khajavirad:</b> <a href='/paper/5691/'>Explicit convex hull description of bivariate quadratic sets with indicator variables</a></p>
<p><b> Mucci:</b> <a href='/paper/5935/'>A relaxation result for a second order energy of mappings into the sphere</a></p>
<p><b> Paolini, Stepanov:</b> <a href='/paper/5967/'>On the Steiner tree connecting a fractal set</a></p>
<p><b> Davoli, Ferreira, Fonseca, Iglesias:</b> <a href='/paper/6039/'>Dyadic partition-based training schemes for TV/TGV denoising</a></p>
<p><b> Giannetti, Stefani:</b> <a href='/paper/6212/'>On the monotonicity of non-local perimeter of convex bodies</a></p>
<p><b> Novaga, Sciaraffia:</b> <a href='/paper/6234/'>Singularities of the network flow with symmetric initial data</a></p>
<p><b> Caponi, Crismale:</b> <a href='/paper/6303/'>A rate-independent model for geomaterials under compression coupling strain gradient plasticity and damage</a></p>
<p><b> Benatti, Mantegazza, Oronzio, Pluda:</b> <a href='/paper/6766/'>A Note on Ricci-pinched three-manifolds</a></p>
<p><b> Huesmann, Goldman, Trevisan:</b> <a href='/paper/6785/'>Asymptotics for Random Quadratic Transportation Costs</a></p>
<p><b> Novaga, Paolini, Stepanov:</b> <a href='/paper/6854/'>On the total surface area of potato packings</a></p>
<p><b> Caselli:</b> <a href='/paper/6891/'>Stable $s$-minimal cones in $\mathbb{R}^2$ are flat for $s \sim 0$</a></p>
<p><b> Benatti, León Quirós, Oronzio, Pluda:</b> <a href='/paper/6916/'>Nonlinear potential theory and Ricci-pinched 3-manifolds</a></p>
<p><b> Dweik:</b> <a href='/paper/6952/'>The limit of a nonlocal $p-$Laplacian obstacle problem with nonhomogeneous term as $p \to \infty$</a></p>
<p><b> Nobili, Novaga, Paolini:</b> <a href='/paper/6987/'>Periodic double tilings of the plane</a></p>
<p><b> Chambolle, Crismale:</b> <a href='/paper/6990/'>A characterization of Generalized functions of Bounded Deformation</a></p>
<h2>Open Positions</h2>
<p><a href="/position/988/">Ph.D. position in Gothenburg</a> (deadline: Mon 24 February 2025)</p>
<p><a href="/position/967/">Doctoral and post-doctoral positions at Westlake University, Hangzhou, China</a> (deadline: Mon 10 March 2025)</p>
<p><a href="/position/995/">5-10 Postdoctoral positions at Jyväskylä</a> (deadline: Mon 17 March 2025)</p>
<p><b>(new)</b> <a href="/position/996/">PhD position at Technical University of Munich, group "Multiscale and Stochastic Dynamics"</a> (deadline: Sat 31 May 2025)</p>
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