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The description of invariants of surfaces with respect to the motion groups is reduced to the description of invariants of parameterized surfaces with respect to the motion groups. Existence of a commuting system of invariant partial…

微分几何 · 数学 2015-05-15 Ural Bekbaev

We consider a composite optimization problem where the sum of a continuously differentiable and a merely lower semicontinuous function has to be minimized. The proximal gradient algorithm is the classical method for solving such a problem…

最优化与控制 · 数学 2023-05-01 Xiaoxi Jia , Christian Kanzow , Patrick Mehlitz

This is a survey on eigenfunctions of the Laplacian on Riemannian manifolds (mainly compact and without boundary). We discuss both local results obtained by analyzing eigenfunctions on small balls, and global results obtained by wave…

偏微分方程分析 · 数学 2009-03-23 Steve Zelditch

We investigate regularity properties of minimizers for non-autonomous convex variational integrands $F(x, \mathrm{D} u)$ with linear growth, defined on bounded Lipschitz domains $\Omega \subset \mathbb{R}^n$. Assuming appropriate…

偏微分方程分析 · 数学 2025-10-13 Lukas Fußangel , Buddhika Priyasad , Paul Stephan

Invariant Lagrangians yield invariant Euler-Lagrange equations, and it was discussed in the literature how to compute those using various local methods. The focus of this paper is on global algebraic differential invariants. In this case…

微分几何 · 数学 2026-01-13 Boris Kruglikov , Eivind Schneider , Wijnand Steneker

The study of singular perturbations of the Dirichlet energy is at the core of the phenomenological-description paradigm in soft condensed matter. Being able to pass to the limit plays a crucial role in the understanding of the…

偏微分方程分析 · 数学 2017-09-19 Andres Contreras , Xavier Lamy , Rémy Rodiac

It is shown that the problem of a possible violation of the Lorentz transformations at Lorentz factors $\gamma >5\times 10^{10} ,$ indicated by the situation which has developed in the physics of ultra-high energy cosmic rays (the absence…

广义相对论与量子宇宙学 · 物理学 2015-06-25 G. Yu. Bogoslovsky , H. F. Goenner

This work concerns the global minimization of a prescribed eigenvalue or a weighted sum of prescribed eigenvalues of a Hermitian matrix-valued function depending on its parameters analytically in a box. We describe how the analytical…

数值分析 · 数学 2016-05-11 Emre Mengi , Emre Alper Yildirim , Mustafa Kilic

We give a systematic and thorough study of geometric notions and results connected to Minkowski's measure of symmetry and the extension of the well-known Minkowski functional to arbitrary, not necessarily symmetric convex bodies K on any…

经典分析与常微分方程 · 数学 2007-05-23 Szilard Gy. Revesz

We derive novel concentration inequalities for the operator norm of the sum of self-adjoint operators that do not explicitly depend on the underlying dimension of the operator, but rather an intrinsic notion of it. Our analysis leads to…

统计理论 · 数学 2026-02-17 Diego Martinez-Taboada , Aaditya Ramdas

We give extensions of results on nonnegative matrix semigroups which deduce finiteness or boundedness of such semigroups from the corresponding local properties, e.g., from finiteness or boundedness of values of certain linear functionals…

泛函分析 · 数学 2013-07-01 Roman Drnovšek , Heydar Radjavi

Minkowski's First Theorem and Dirichlet's Approximation Theorem provide upper bounds on certain minima taken over lattice points contained in domains of Euclidean spaces. We study the distribution of such minima and show, under some…

数论 · 数学 2022-01-14 Michael Björklund , Alexander Gorodnik

In this work, the notions of normal cones at infinity to unbounded sets and limiting and singular subdifferentials at infinity for extended real value functions are introduced. Various calculus rules for these notions objects are…

最优化与控制 · 数学 2023-08-01 Do Sang Kim , Minh Tung Nguyen , Tien Son Pham

This paper surveys recent developments in the sampling discretization of integral and uniform norms for functions in general finite-dimensional spaces. These results generalize the classical Marcinkiewicz-Zygmund inequalities for…

数值分析 · 数学 2026-03-04 F. Dai , E. Kosov , V. Temlyakov

In the framework of diffieties, introduced by Vinogradov, we introduce integrable infinitesimal symmetries and show that they define a one parameter pseudogroup of local diffiety morphisms. We prove some preliminary results allowing to…

微分几何 · 数学 2026-02-13 François Ollivier , Yirmeyahu J. Kaminski

We study extension theorems for Lipschitz-type operators acting on metric spaces and with values on spaces of integrable functions. Pointwise domination is not a natural feature of such spaces, and so almost everywhere inequalities and…

泛函分析 · 数学 2019-10-02 W. V. Cavalcante , P. Rueda , E. A. Sánchez-Pérez

We analyze the topological structure of the Nehari set for a class of functionals depending on a real parameter $\lambda$, and having two degrees of homogeneity. A special attention is paid to the extremal parameter $\lambda^*$, which is…

偏微分方程分析 · 数学 2022-03-07 Humberto Ramos Quoirin , Kaye Silva

In this review article we present regularity properties of generalized functions which are useful in the analysis of non-linear problems. It is shown that Schwartz distributions embedded into our new spaces of generalized functions, with…

泛函分析 · 数学 2014-07-25 Stevan Pilipovic , Dimitris Scarpalezos , Jasson Vindas

We begin a systematic study of the region of possible values of the volumes of Minkowski subset sums of a collection of $M$ compact sets in $\mathbb{R}^d$, which we call the Lyusternik region, and make some first steps towards describing…

组合数学 · 数学 2024-03-13 Franck Barthe , Mokshay Madiman

We prove existence and uniqueness of minimizers for a family of energy functionals that arises in Elasticity and involves polyconvex integrands over a certain subset of displacement maps. This work extends previous results by Awi and Gangbo…

偏微分方程分析 · 数学 2019-06-05 Romeo Awi , Marc Sedjro