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In this paper we study the rate of convergence of the eigenvalues of 1-dimensional rapidly oscillating $p-$laplacian type problems and find explicit order of convergence both in $k$ and in $\ve$. Moreover, explicit bounds on the constant…

偏微分方程分析 · 数学 2012-11-20 Julian Fernandez Bonder , Juan Pablo Pinasco , Ariel M. Salort

We formulate an optimization problem for the dependence of the eigenvalues of Maxwell's equations in a cavity upon variation of the electric permittivity and we prove a corresponding Maximum Principle.

偏微分方程分析 · 数学 2023-11-29 Pier Domenico Lamberti , Paolo Luzzini , Michele Zaccaron

A new approach to solving eigenvalue optimization problems for large structured matrices is proposed and studied. The class of optimization problems considered is related to computing structured pseudospectra and their extremal points, and…

数值分析 · 数学 2022-06-22 Nicola Guglielmi , Christian Lubich , Stefano Sicilia

Chance constraints are frequently used to limit the probability of constraint violations in real-world optimization problems where the constraints involve stochastic components. We study chance-constrained submodular optimization problems,…

最优化与控制 · 数学 2023-09-27 Xiankun Yan , Anh Viet Do , Feng Shi , Xiaoyu Qin , Frank Neumann

Topology optimization of frame structures under free-vibration eigenvalue constraints constitutes a challenging nonconvex polynomial optimization problem with disconnected feasible sets. In this article, we first formulate it as a…

最优化与控制 · 数学 2025-09-08 Marek Tyburec , Michal Kočvara , Marouan Handa , Jan Zeman

We provide the estimates for the constant in the weighted Poincar\'e inequality for a special class of planar domains and weights. Based on this, we prove the lower bounds for the first non-zero eigenvalue $\mu_\rho$ of the Neumann…

偏微分方程分析 · 数学 2023-12-21 Alexander Menovschikov

Given $1<p<N$ and two measurable functions $V(r)\geq 0$ and $K(r)>0$, $r>0$, we define the weighted spaces \[ W=\left\{ u\in D^{1,p}(\mathbb{R}^N):\int_{\mathbb{R}^N}V\left(\left|x\right|\right) \left|u\right|^p dx<\infty \right\} , \quad…

偏微分方程分析 · 数学 2015-10-15 Marino Badiale , Michela Guida , Sergio Rolando

In this note, we study the potential algebra for several models arising out of quantum mechanics with generalized uncertainty principle. We first show that the eigenvalue equation corresponding to the momentum-space Hamiltonian…

量子物理 · 物理学 2019-10-02 Satoshi Ohya , Pinaki Roy

In this paper, we are interested in studying the multiplicity, uniqueness, and nonexistence of solutions for a class of singular elliptic eigenvalue problem for the Dirichlet fractional $(p,q)$-Laplacian. The nonlinearity considered…

偏微分方程分析 · 数学 2023-06-26 A. L. A. de Araujo , Aldo H. S. Medeiros

In this paper, we investigate a weighted eigenvalue problem driven by the Logarithmic Laplacian with indefinite weights. We prove the existence of an unbounded sequence of Lusternik-Schnirelman eigenvalues and show that the first eigenvalue…

偏微分方程分析 · 数学 2026-05-14 Rakesh Arora , Tuhina Mukherjee , Arshi Vaishnavi

We study Hadamard's variational formula for simple eigenvalues under dynamical and conformal deformations. Particularly, harmonic convexity of the first eigenvalue of the Laplacian under the mixed boundary condition is established for…

偏微分方程分析 · 数学 2024-09-09 Takashi Suzuki , Takuya Tsuchiya

This article deals with the existence and non-existence of positive solutions for the eigenvalue problem driven by nonhomogeneous fractional $p\& q$ Laplacian operator with indefinite weights $$\left(-\Delta_p\right)^{\alpha}u +…

偏微分方程分析 · 数学 2020-06-08 Thanh-Hieu Nguyen , Hoang-Hung Vo

The eigenvalue problem for the p-Laplace operator with Robin boundary condition is considered in this paper. A Faber-Krahn type inequality is proved. More precisely, it is shown that amongst all the domains of fixed volume, the ball has the…

偏微分方程分析 · 数学 2010-03-22 Qiuyi Dai , Yuxia Fu

We derive various eigenvalue estimates for the Hodge Laplacian acting on differential forms on weighted Riemannian manifolds. Our estimates unify and extend various results from the literature and we provide a number of geometric…

微分几何 · 数学 2024-06-21 Volker Branding , Georges Habib

In this paper we consider a weakly coupled $p$-Laplacian system of a Bernoulli type free boundary problem, through minimization of a corresponding functional. We prove various properties of any local minimizer and the corresponding free…

偏微分方程分析 · 数学 2023-01-06 Morteza Fotouhi , Henrik Shahgholian

We study the optimization of the positive principal eigenvalue of an indefinite weighted problem, associated with the Neumann Laplacian in a box $\Omega\subset\mathbb{R}^N$, which arises in the investigation of the survival threshold in…

偏微分方程分析 · 数学 2019-09-26 Dario Mazzoleni , Benedetta Pellacci , Gianmaria Verzini

Weighted $\ell_1$-minimization has been studied as a technique for the reconstruction of a sparse signal from compressively sampled measurements when prior information about the signal, in the form of a support estimate, is available. In…

信息论 · 计算机科学 2016-12-09 Deanna Needell , Rayan Saab , Tina Woolf

We obtain a nigh optimal estimate for the first eigenvalue of two natural weighted problems associated to the bilaplacian (and of a continuous family of fourth-order elliptic operators in dimension $2$) in degenerating annuli (that are…

偏微分方程分析 · 数学 2023-06-08 Alexis Michelat , Tristan Rivière

We introduce the concept of the point of minimal capacity of the domain, and observe a connection between this point and the lowest eigenfunction of a Laplacian on this domain, in one special case.

经典分析与常微分方程 · 数学 2015-03-19 Mark Levi , Jia Pan

We consider cost constrained versions of the minimum spanning tree problem and the assignment problem. We assume edge weights are independent copies of a continuous random variable $Z$ that satisfies $F(x)=\Pr(Z\leq x)\approx x^\alpha$ as…

数据结构与算法 · 计算机科学 2021-06-01 Alan Frieze , Tomasz Tkocz
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