Shape optimization of an electric motor subject to nonlinear magnetostatics

P Gangl, U Langer, A Laurain, H Meftahi… - SIAM Journal on Scientific …, 2015 - SIAM
The goal of this paper is to improve the performance of an electric motor by modifying the
geometry of a specific part of the iron core of its rotor. To be more precise, the objective is to …

Quantitative stability estimates for a two-phase Serrin-type overdetermined problem

L Cavallina, G Poggesi, T Yachimura - Nonlinear analysis, 2022 - Elsevier
In this paper, we deal with an overdetermined problem of Serrin-type with respect to a two-
phase elliptic operator in divergence form with piecewise constant coefficients. In particular …

Shape optimization of a weighted two-phase Dirichlet eigenvalue

I Mazari, G Nadin, Y Privat - Archive for Rational Mechanics and Analysis, 2022 - Springer
This article is concerned with a spectral optimization problem: in a smooth bounded domain
Ω Ω, for a bounded function m and a nonnegative parameter α α, consider the first …

Smoothness properties for the optimal mixture of two isotropic materials: the compliance and eigenvalue problems

J Casado-Diaz - SIAM Journal on Control and Optimization, 2015 - SIAM
The present paper is devoted to obtaining some smoothness results for the solution of two
classical control problems relative to the optimal mixture of two isotropic materials. In the first …

Numerical Maximization of the p-Laplacian Energy of a Two-Phase Material

J Casado-Díaz, C Conca, D Vásquez-Varas - SIAM Journal on Numerical …, 2021 - SIAM
For a diffusion problem modeled by the p-Laplacian operator, we are interested in obtaining
numerically the two-phase material which maximizes the internal energy. We assume that …

Minimization of inhomogeneous biharmonic eigenvalue problems

D Kang, CY Kao - Applied Mathematical Modelling, 2017 - Elsevier
Biharmonic eigenvalue problems arise in the study of the mechanical vibration of plates. In
this paper, we study the minimization of the first eigenvalue of a simplified model with …

Some comparison results and a partial bang-bang property for two-phases problems in balls

I Mazari - Mathematics in Engineering, 2022 - hal.science
In this paper, we present two type of contributions to the study of two-phases problems. In
such problems, the main focus is on optimising a diffusion function a under L∞ and L 1 …

The Maximization of the -Laplacian Energy for a Two-Phase Material

J Casado-Diaz, C Conca, D Vásquez-Varas - SIAM Journal on Control and …, 2021 - SIAM
We consider the optimal arrangement of two diffusion materials in a bounded open set
Ω⊂R^N in order to maximize the energy. The diffusion problem is modeled by the p …

On a two-phase Serrin-type problem and its numerical computation

L Cavallina, T Yachimura - ESAIM: Control, Optimisation and …, 2020 - esaim-cocv.org
We consider an overdetermined problem of Serrin-type with respect to an operator in
divergence form with piecewise constant coefficients. We give sufficient condition for unique …

[HTML][HTML] A characterization result for the existence of a two-phase material minimizing the first eigenvalue

J Casado-Díaz - Annales de l'Institut Henri Poincaré C, Analyse non …, 2017 - Elsevier
Given two isotropic homogeneous materials represented by two constants 0< α< β in a
smooth bounded open set Ω⊂ RN, and a positive number κ<| Ω|, we consider here the …