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We present a ${\Gamma}$-convergence approximation for the total anisotropic length of a partition. This theoretical result gives rise to a numerical method which allows the study of minimal partitions with respect to different anisotropies.…

最优化与控制 · 数学 2016-09-07 Beniamin Bogosel

A G\r{a}rding-type inequality is proved for a quadratic form associated to $\mathcal{A}$-quasiconvex functions. This quadratic form appears as the relative entropy in the theory of conservation laws and it is related to the Weierstrass…

偏微分方程分析 · 数学 2020-05-28 Konstantinos Koumatos , Andreas Vikelis

We consider the homogeneous Dirichlet problem for the anisotropic parabolic equation \[ u_t-\sum_{i=1}^ND_{x_i}\left(|D_{x_i}u|^{p_i(x,t)-2}D_{x_i}u\right)=f(x,t) \] in the cylinder $\Omega\times (0,T)$, where $\Omega\subset \mathbb{R}^N$,…

偏微分方程分析 · 数学 2022-08-17 Rakesh Arora , Sergey Shmarev

We consider a type of Hardy-Sobolev inequality, whose weight function is singular on the whole domain boundary. We are concerned with the attainability of the best constant of such inequality. In dimension two, we link the inequality to a…

偏微分方程分析 · 数学 2024-05-24 Liming Sun , Lei Wang

We give several generalizations of Rellich's classical uniqueness theorem to unbounded domains. We give a natural half-space generalization for super-exponentially decaying inhomogeneities using real variable techniques. We also prove under…

偏微分方程分析 · 数学 2014-09-02 Esa V. Vesalainen

The behavior near the initial singular state of the anisotropy parameter of the arbitrary type, homogeneous and anisotropic Bianchi models is considered in the framework of the brane world cosmological models. The matter content on the…

广义相对论与量子宇宙学 · 物理学 2009-11-10 T. Harko , M. K. Mak

In this paper, we study a second-order, nonlinear evolution equation with damping arising in elastodynamics. The nonlinear term is monotone and possesses a convex potential but exhibits anisotropic and nonpolynomial growth. The appropriate…

偏微分方程分析 · 数学 2018-04-11 Adrian Montgomery Ruf

In this brief note we show that under a volume non-preserving scaling it is possible to recover the basics for a regularity theory regarding local weak solutions to a parabolic fully anisotropic equation. We characterize self-similar…

偏微分方程分析 · 数学 2022-05-17 Simone Ciani , Umberto Guarnotta , Vincenzo Vespri

We develop a new method to obtain symmetrization inequalities of Sobolev type. Our approach leads to new inequalities and considerable simplification in the theory of embeddings of Sobolev spaces based on rearrangement invariant spaces.

泛函分析 · 数学 2007-06-21 Joaquim Martin , Mario Milman , Evgeniy Pustylnik

Though much work has been done with respect to the existence of extremals of the critical first order Trudinger-Moser inequalities in $W^{1,n}(\mathbb{R}^n)$ and higher order Adams inequalities on finite domain $\Omega\subset \mathbb{R}^n$,…

偏微分方程分析 · 数学 2022-11-01 Lu Chen , Guozhen Lu , Maochun Zhu

We introduce a new type of generating theorems in General Relativity for anisotropic, static, spherically symmetric solutions of the Einstein field equations. The results are used to derive a class of solutions that can serve as new models…

广义相对论与量子宇宙学 · 物理学 2026-04-14 Paulo Luz , Sante Carloni

We consider spherically symmetric Einstein-massless-scalar field equations with negative cosmological constant in five dimensions and analyze evolution of small perturbations of anti-de Sitter spacetime using the recently proposed resonant…

广义相对论与量子宇宙学 · 物理学 2015-08-26 Piotr Bizoń , Maciej Maliborski , Andrzej Rostworowski

Let $ \Omega \subsetneq \mathbf{R}^n\,(n\geq 2)$ be an unbounded convex domain. We study the minimal surface equation in $\Omega$ with boundary value given by the sum of a linear function and a bounded uniformly continuous function in $…

偏微分方程分析 · 数学 2022-01-19 Guosheng Jiang , Zhehui Wang , Jintian Zhu

We investigate the regularity of local weak solutions to evolution equations of the form \[…

偏微分方程分析 · 数学 2026-04-23 Pasquale Ambrosio , Simone Ciani , Giovanni Cupini

In part II we constructed the lower bound, in the spirit of $\Gamma$- $\liminf$ for some general classes of singular perturbation problems, with or without the prescribed differential constraint, taking the form E_\e(v):=\int_\Omega…

偏微分方程分析 · 数学 2013-09-26 Arkady Poliakovsky

We study singular limits of stochastic evolution equations in the interplay of disappearing strength of the noise and insufficient regularity, where the equation in the limit with noise would not be defined due to lack of regularity. We…

概率论 · 数学 2023-11-07 Dirk Blömker , Jonas M. Tölle

In this article we give an extention of the L^2-theory of anisotropic singular perturbations for elliptic problems. We study a linear and some nonlinear problems involving L^p data (1<p<2). Convergences in pseudo Sobolev spaces are proved…

偏微分方程分析 · 数学 2016-04-15 Chokri Ogabi

In this paper we study the local behavior of a solution to the Stokes system with singular coefficients. One of the main results is the bound on the vanishing order of a nontrivial solution to the Stokes system, which is a quantitative…

偏微分方程分析 · 数学 2008-12-22 Ching-Lung Lin , Jenn-Nan Wang

We develop a technique using dual mixed-volumes to study the isotropic constants of some classes of spaces. In particular, we recover, strengthen and generalize results of Ball and Junge concerning the isotropic constants of subspaces and…

泛函分析 · 数学 2007-05-23 Emanuel Milman

We establish the anisotropic hydrodynamics (aHydro) equations based on a boost-non-invariant longitudinally expanding system. Good consistency is found in the comparison between the aHydro results with those from the Boltzmann equation…

核理论 · 物理学 2024-10-01 Shile Chen , Shuzhe Shi
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