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In this manuscript we study the following optimization problem: given a bounded and regular domain $\Omega\subset \mathbb{R}^N$ we look for an optimal shape for the "$\mathrm{W}-$vanishing window" on the boundary with prescribed measure…

Analysis of PDEs · Mathematics 2018-05-22 João Vitor Da Silva , Ariel Salort , Analía Silva , Juan Spedaletti

This paper concerns the shape optimization problem of minimizing the ground state energy of the magnetic Dirichlet Laplacian with constant magnetic field among three-dimensional domains of fixed volume. In contrast to the two-dimensional…

Mathematical Physics · Physics 2025-11-14 Matthias Baur

In this paper, we study a partially overdetermined mixed boundary value problem in a half ball. We prove that a domain in which this partially overdetermined problem admits a solution if and only if the domain is a spherical cap…

Analysis of PDEs · Mathematics 2019-08-08 Jinyu Guo , Chao Xia

This paper investigates the solutions to the two-phase Serrin's problem, an overdetermined boundary value problem motivated by shape optimization. Specifically, we study the torsional rigidity of composite beams, where two distinct…

Analysis of PDEs · Mathematics 2024-11-04 Lorenzo Cavallina

The paper is devoted to the relaxation and integral representation in the space of functions of bounded variation for an integral energy arising from optimal design problems. The presence of a perimeter penalization is also considered in…

Functional Analysis · Mathematics 2014-09-26 Graca Carita , Elvira Zappale

In the optimization of convex domains under a PDE constraint numerical difficulties arise in the approximation of convex domains in $\mathbb{R}^3$. Previous research used a restriction to rotationally symmetric domains to reduce shape…

Numerical Analysis · Mathematics 2023-11-23 Sören Bartels , Hedwig Keller , Gerd Wachsmuth

We present a quantitative estimate for the radially symmetric configuration concerning a Serrin-type overdetermined problem for the torsional rigidity in a bounded domain $\Omega $, when the equation is known on $\Omega \setminus…

Analysis of PDEs · Mathematics 2020-05-12 Serena Dipierro , Giorgio Poggesi , Enrico Valdinoci

We look for minimizers of the buckling load problem with perimeter constraint in any dimension. In dimension 2, we show that the minimizing plates are convex; in higher dimension, by passing through a weaker formulation of the problem, we…

Analysis of PDEs · Mathematics 2023-07-07 Michele Carriero , Simone Cito , Antonio Leaci

We establish an energy quantization for constrained Willmore surfaces, where the constraints are given by area, volume, and total mean curvature, assuming that the underlying conformal structures remain bounded. Furthermore, we show strong…

Differential Geometry · Mathematics 2025-05-27 Christian Scharrer , Alexander West

We consider a variational model for periodic partitions of the upper half-space into three regions, where two of them have prescribed volume and are subject to the geometrical constraint that their union is the subgraph of a function, whose…

Analysis of PDEs · Mathematics 2022-10-19 Marco Bonacini , Riccardo Cristoferi

In this paper we introduce a simple variational model describing the ground state of a superconducting charge qubit. The model gives rise to a shape optimization problem that aims at maximizing the number of qubit states at a given gating…

Analysis of PDEs · Mathematics 2025-02-06 Dario Mazzoleni , Cyrill B. Muratov , Berardo Ruffini

In this paper, we consider semilinear elliptic problems in a bounded domain $\Omega$ contained in a given unbounded Lipschitz domain $\mathcal C \subset \mathbb R^N$. Our aim is to study how the energy of a solution behaves with respect to…

Analysis of PDEs · Mathematics 2023-07-17 Danilo Gregorin Afonso , Alessandro Iacopetti , Filomena Pacella

We consider a constrained optimization problem arising from the study of the Helmholtz equation in unbounded domains. The optimization problem provides an approximation of the solution in a bounded computational domain. In this paper we…

Analysis of PDEs · Mathematics 2015-01-09 Giulio Ciraolo

In this paper we consider a shape optimization problem in which the data in the cost functional and in the state equation may change sign, and so no monotonicity assumption is satisfied. Nevertheless, we are able to prove that an optimal…

Analysis of PDEs · Mathematics 2017-04-24 Giuseppe Buttazzo , Bozhidar Velichkov

We consider the optimization problem of minimizing $\int_{\mathbb{R}^n}|\nabla u|^2\,\mathrm{d}x$ with double obstacles $\phi\leq u\leq\psi$ a.e. in $D$ and a constraint on the volume of $\{u>0\}\setminus\overline{D}$, where…

Analysis of PDEs · Mathematics 2022-01-24 Xiaoliang Li , Cong Wang

We consider $L^2$ minimizing geodesics along the group of volume preserving maps $SDiff(D)$ of a given 3-dimensional domain $D$. The corresponding curves describe the motion of an ideal incompressible fluid inside $D$ and are (formally)…

Analysis of PDEs · Mathematics 2010-11-05 Yann Brenier

In two spatial dimensions, we discuss the relation between the solvability of Schiffer's overdetermined problem and the optimality, among sets of prescribed area, of the first eigenvalue in the buckling problem for a clamped plate and that…

Analysis of PDEs · Mathematics 2026-03-03 Giovanni Franzina

We show that in the setting of proper metric spaces one obtains a solution of the classical two-dimensional Plateau problem by minimizing the energy, as in the classical case, once a definition of area (in the sense of convex geometry) has…

Differential Geometry · Mathematics 2015-07-17 Alexander Lytchak , Stefan Wenger

In the 19th century, Lord Rayleigh conjectured that among all clamped plates with given area, the disk minimizes the fundamental tone. In the 1990s, N. S. Nadirashvili proved the conjecture in $\mathbb{R}^2$ and M. S. Ashbaugh und R. D.…

Analysis of PDEs · Mathematics 2021-09-06 Kathrin Stollenwerk

In this paper, we study a maximization and a minimization problem associated with a Poisson boundary value problem. Optimal solutions in a set of rearrangements of a given function define stationary and stable flows of an ideal fluid in two…

Optimization and Control · Mathematics 2016-01-07 Seyyed Abbas Mohammadi