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Minkowski tensors are comprehensive shape descriptors that robustly capture n-point information in complex random geometries and that have already been extensively applied in the Euclidean plane. Here, we devise a novel framework for…

Instrumentation and Methods for Astrophysics · Physics 2024-07-30 Caroline Collischon , Michael Klatt , Anthony Banday , Manami Sasaki , Christoph Räth

In this paper, we establish some rigidity theorems for space-like hypersurfaces in Minkowski space by using a Weinberger-type approach with P-functions and integral identities. Firstly, for space-like hypersurfaces $M$ represented as graphs…

Differential Geometry · Mathematics 2025-12-30 Jianhua Chen , Haiyun Deng , Haiqin Xie , Jiabin Yin

The paper focuses on possible hyperbolic versions of the classical Pal isominwidth inequality in R^2 from 1921, which states that for a fixed minimal width, the regular triangle has minimal area. We note that the isominwidth problem is…

Metric Geometry · Mathematics 2025-09-25 Karoly J. Boroczky , Ansgar Freyer , Adam Sagmeister

In this paper, we introduce a Robin boundary analogue of the Orlicz-Minkowski problem, which seeks to find a capillary convex body with a prescribed capillary Orlicz surface area measure in the upper Euclidean half-space. We obtain the…

Differential Geometry · Mathematics 2025-09-16 Xudong Wang , Baocheng Zhu

For any bounded convex domain \Omega in R^N, we assign a positive finite Borel measure associated with the solution to a su-blinear elliptic equation in \Omega. We prove that this measure is weakly continuous in the sense of measure with…

Analysis of PDEs · Mathematics 2022-02-09 Dai Qiuyi , Yi Xing

We investigate the differences and similarities of the Dirichlet problem of the mean curvature equation in the Euclidean space and in the Lorentz-Minkowski space. Although the solvability of the Dirichlet problem follows standards…

Differential Geometry · Mathematics 2019-12-18 Rafael López

In this paper, we solve the $L_p$ chord Minkowski problem in the case of discrete measures whose supports are in general position for negative $p$ and $q>0.$ As for general Borel measure with a density, we also give a proof but need…

Analysis of PDEs · Mathematics 2023-04-25 Yuanyuan Li

We study the partial regularity problem of the three-dimensional incompressible Navier--Stokes equations. We present a new boundary regularity criterion for boundary suitable weak solutions. As an application, a bound for the parabolic…

Analysis of PDEs · Mathematics 2018-11-13 Hi Jun Choe , Minsuk Yang

The Minkowski problem in Gaussian probability space is studied in this paper. In addition to providing an existence result on a Gaussian-volume-normalized version of this problem, the main goal of the current work is to provide uniqueness…

Metric Geometry · Mathematics 2020-10-12 Yong Huang , Dongmeng Xi , Yiming Zhao

We consider the helical reduction of the wave equation with an arbitrary source on $(n+1)$-dimensional Minkowski space, $n\geq2$. The reduced equation is of mixed elliptic-hyperbolic type on ${\bf R}^n$. We obtain a uniqueness theorem for…

Mathematical Physics · Physics 2009-11-11 C. G. Torre

The theory presented in this monograph establishes the first mathematically rigorous result on the global nonlinear stability of self-gravitating matter under small perturbations of an asymptotically flat, spacelike hypersurface of…

General Relativity and Quantum Cosmology · Physics 2017-07-04 Philippe G. LeFloch , Yue Ma

A classical theorem, mainly due to Aleksandrov and Pogorelov, states that any Riemannian metric on $S^2$ with curvature $K>-1$ is induced on a unique convex surface in $H^3$. A similar result holds with the induced metric replaced by the…

Differential Geometry · Mathematics 2016-09-07 Jean-Marc Schlenker

The book is based largely on the author's researches presented at conferences in the period 1992 onwards. It is a historically based exposition and an extension of the hyperbolic version of special relativity first proposed by Vari\'cak…

General Physics · Physics 2019-09-18 John F Barrett

In a model of physics taking place on a discrete set of points that approximates Minkowski space, one might perhaps expect there to be an empirically identifiable preferred frame. However, the work of Dowker, Bombelli, Henson, and Sorkin…

General Relativity and Quantum Cosmology · Physics 2018-09-06 Adrian Kent

In this paper, it is proved that the weak convergence of the $L_p$ Guassian surface area measures implies the convergence of the corresponding convex bodies in the Hausdorff metric for $p\geq 1$. Moreover, this paper obtains the solution to…

Metric Geometry · Mathematics 2021-03-19 Hejun Wang

Using gnomonic projection and Poincar\'e model, we first define the spherical projection body and hyperbolic projection body in spherical space $\mathbb{S}^n$ and hyperbolic space $\mathbb{H}^n$, then define the spherical Steiner…

Metric Geometry · Mathematics 2024-06-21 Y. Lin , Y. Wu

The discrete functional $L_p$ Minkowski problem is posed and solved. As a consequence, the general affine P\'{o}lya-Szeg\"{o} principle and the general affine Sobolev inequalities are established.

Metric Geometry · Mathematics 2020-09-23 Tuo Wang

We study one-dimensional linear hyperbolic systems with $L^{\infty}$-coefficients subjected to periodic conditions in time and reflection boundary conditions in space. We derive a priori estimates and give an operator representation of…

Analysis of PDEs · Mathematics 2025-12-10 Irina Kmit

In this paper, combining the $p$-capacity for $p\in (1, n)$ with the Orlicz addition of convex domains, we develop the $p$-capacitary Orlicz-Brunn-Minkowski theory. In particular, the Orlicz $L_{\phi}$ mixed $p$-capacity of two convex…

Metric Geometry · Mathematics 2017-11-21 Han Hong , Deping Ye , Ning Zhang

We consider a conjecture made by Ge, Wang and Wu regarding weighted Alexandrov-Fenchel inequalities for horospherically convex hypersurfaces in hyperbolic space (a bound, for some physically motivated weight function, of the weighted…

Differential Geometry · Mathematics 2019-06-25 Frederico Girão , Diego Pinheiro , Neilha M. Pinheiro , Diego Rodrigues
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