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We confirm a conjecture of Chi Li which says that the minimizer of the normalized volume function for a klt singularity is unique up to rescaling. This is achieved by defining stability thresholds for valuations, and then showing that a…

Algebraic Geometry · Mathematics 2020-05-19 Chenyang Xu , Ziquan Zhuang

In this paper, we investigate the minimization of a functional in which the usual perimeter is competing with a nonlocal singular term comparable (but not necessarily equal to) a fractional perimeter. The motivation for this problem is a…

Analysis of PDEs · Mathematics 2020-09-09 Antoine Mellet , Yijing Wu

We investigate regularity of minimizers in two dimensions for certain classes of non-smooth convex functionals. In particular our results apply to the surface tensions that appear in recent works on random surfaces and random tilings of…

Analysis of PDEs · Mathematics 2019-12-19 Daniela De Silva , Ovidiu Savin

We consider a general energy functional for phase coexistence models, which comprises the case of Banach norms in the gradient term plus a double-well potential. We establish density estimates for $Q$-minima. Namely, the state parameters…

Analysis of PDEs · Mathematics 2017-09-27 Serena Dipierro , Alberto Farina , Enrico Valdinoci

We prove hyperbolicity of global minimizers for random Lagrangian systems in dimension 1. The proof considerably simplifies a related result in [2]. The conditions for hyperbolicity are almost optimal: they are essentially the same as…

Dynamical Systems · Mathematics 2015-06-04 Alexandre Boritchev , Konstantin Khanin

We consider the "thin one-phase" free boundary problem, associated to minimizing a weighted Dirichlet energy of the function in $\mathbb R^{n+1}_+$ plus the area of the positivity set of that function in $\mathbb R^n$. We establish full…

Analysis of PDEs · Mathematics 2019-07-29 Max Engelstein , Aapo Kauranen , Martí Prats , Georgios Sakellaris , Yannick Sire

Using reflection positivity techniques we prove the existence of minimizers for a class of mesoscopic free-energies representing 1D systems with competing interactions. All minimizers are either periodic, with zero average, or of constant…

Mathematical Physics · Physics 2011-09-09 Alessandro Giuliani , Joel L. Lebowitz , Elliott H. Lieb

For a finitely irreducible countable Markov shift and a potential with summable variations, we provide a condition on the associated pressure function which ensures that Bowen's Gibbs state, the equilibrium state, and the minimizer of the…

Dynamical Systems · Mathematics 2020-12-02 Hiroki Takahasi

We investigate the asymptotic behavior of minimizers for the singularly perturbed Perona-Malik functional in one dimension. In a previous study, we have shown that blow-ups of these minimizers at a suitable scale converge to staircase-like…

Analysis of PDEs · Mathematics 2024-05-21 Massimo Gobbino , Nicola Picenni

We study global minimizers of a functional modeling the free energy of thin liquid layers over a solid substrate under the combined effect of surface, gravitational, and intermolecular potentials. When the latter ones have a mild repulsive…

Analysis of PDEs · Mathematics 2022-09-07 Riccardo Durastanti , Lorenzo Giacomelli

We consider the motion of an underdamped Brownian particle in a tilted periodic potential in a wide temperature range. Based on the previous data [1] and the new simulation results we show that the underdamped motion of particles in…

Statistical Mechanics · Physics 2013-07-17 I. G. Marchenko , I. I. Marchenko , A. V. Zhiglo

Under mild assumptions, we prove that any random multifunction can be represented as the set of minimizers of an infinitely many differentiable normal integrand, which preserves the convexity of the random multifunction. We provide several…

Optimization and Control · Mathematics 2021-08-06 Juan Guillermo Garrido , Pedro Pérez-Aros , Emilio Vilches

We use a new approach that we call unification to prove that standard weighted double bubbles in $n$-dimensional Euclidean space minimize immiscible fluid surface energy, that is, surface area weighted by constants. The result is new for…

Differential Geometry · Mathematics 2012-12-20 Gary R. Lawlor

We study dynamic minimization problems of the calculus of variations with generalized Lagrangian functionals that depend on a general linear operator $K$ and defined on bounded-time intervals. Under assumptions of regularity, convexity and…

Optimization and Control · Mathematics 2014-05-08 Loïc Bourdin , Tatiana Odzijewicz , Delfim F. M. Torres

In this article, we consider and analyse a small variant of a functional originally introduced in \cite{BLS,LS} to approximate the (geometric) planar Steiner problem. This functional depends on a small parameter $\varepsilon>0$ and…

Analysis of PDEs · Mathematics 2016-11-24 Matthieu Bonnivard , Antoine Lemenant , Vincent Millot

This paper addresses the ill-posedness of the classical Rayleigh variational model of conducting charged liquid drops by incorporating the discreteness of the elementary charges. Introducing the model that describes two immiscible fluids…

Analysis of PDEs · Mathematics 2024-09-12 Cyrill B. Muratov , Matteo Novaga , Philip Zaleski

The optimization problem concerning the determination of the minimizer for the sum of convex functions holds significant importance in the realm of distributed and decentralized optimization. In scenarios where full knowledge of the…

Optimization and Control · Mathematics 2024-09-24 Kananart Kuwaranancharoen , Shreyas Sundaram

The problem of finding the minimizer of a sum of convex functions is central to the field of distributed optimization. Thus, it is of interest to understand how that minimizer is related to the properties of the individual functions in the…

Optimization and Control · Mathematics 2018-12-05 Kananart Kuwaranancharoen , Shreyas Sundaram

We consider the Landau-de Gennes variational problem on a bound\-ed, two dimensional domain, subject to Dirichlet smooth boundary conditions. We prove that minimizers are maximally biaxial near the singularities, that is, their biaxiality…

Analysis of PDEs · Mathematics 2014-01-09 Giacomo Canevari

We study the regularity of minimizers of a two-phase energy functional in periodic media. Our main result is a large scale Lipschitz estimate. We also establish improvement-of-flatness for non-degenerate minimizers, which is a key…

Analysis of PDEs · Mathematics 2025-05-23 Farhan Abedin , William M Feldman