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We prove, for the relativistic Boltzmann equation in the homogeneous case, on the Minkowski space-time, a global in time existence and uniqueness theorem. The method we develop extends to the cases of some curved space-times such as the…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Norbert Noutchegueme , Mesmin Erick Tetsadjio

We consider the porous medium equation on manifolds with conical singularities and show existence, uniqueness and maximal $L^{p}$-regularity of a short time solution. In particular, we obtain information on the short time asymptotics of the…

Analysis of PDEs · Mathematics 2019-12-04 Nikolaos Roidos , Elmar Schrohe

We prove the $C^0$ estimate for the $L_p$ $q$th dual Minkowski problem on $S^2$ under fairly general conditions; namely, when $p$ lies in [0,1) and $q>2+p$, and the $L_p$ $q$th dual curvarture is bounded and bounded away from zero. We note…

Analysis of PDEs · Mathematics 2025-05-26 Karoly J. Boroczky , Shibing Chen , Weiru Liu , Christos Saroglou

In this paper, we are interested in Gaussian versions of the classical Brunn-Minkowski inequality. We prove in a streamlined way a semigroup version of the Ehrard inequality for $m$ Borel or convex sets based on a previous work by Borell.…

Probability · Mathematics 2009-07-09 Franck Barthe , Nolwen Huet

The Minkowski content $L_0(G)$ of a body $G\subset{\mathbb{R}}^d$ represents the boundary length (for $d=2$) or the surface area (for $d=3$) of $G$. A method for estimating $L_0(G)$ is proposed. It relies on a nonparametric estimator based…

Statistics Theory · Mathematics 2007-08-22 Antonio Cuevas , Ricardo Fraiman , Alberto Rodríguez-Casal

In analogy with the classical Minkowski problem, necessary and sufficient conditions are given to assure that a given measure on the unit sphere is the cone-volume measure of the unit ball of a finite dimensional Banach space.

Metric Geometry · Mathematics 2025-02-11 Károly J. Böröczky , Erwin Lutwak , Deane Yang , Gaoyong Zhang

In this short survey we want to present some of the impact of Minkowski's successive minima within Convex and Discrete Geometry. Originally related to the volume of an $o$-symmetric convex body, we point out relations of the successive…

Metric Geometry · Mathematics 2024-02-14 Iskander Aliev , Martin Henk

We study the $C^4$ smooth convex bodies $\mathbb{K}\subset\mathbb{R}^{n+1}$ satisfying $K(x)=u(x)^{1-p}$, where $x\in\mathbb{S}^n$, $K$ is the Gauss curvature of $\partial\mathbb{K}$, $u$ is the support function of $\mathbb{K}$, and $p$ is…

Analysis of PDEs · Mathematics 2015-08-21 Yong Huang , Jiakun Liu , Lu Xu

We consider the Euler equations governing relativistic compressible fluids evolving in the Minkowski spacetime with several spatial variables. We propose a new symmetrization which makes sense for solutions containing vacuum states and, for…

Analysis of PDEs · Mathematics 2008-12-24 Philippe G. LeFloch , Seiji Ukai

This paper investigates the spectral properties of the Hilbert-Brunn-Minkowski operator $L_K$ to derive stability estimates for geometric inequalities, including the local Brunn-Minkowski inequality. By analyzing the eigenvalues of $L_K$,…

Differential Geometry · Mathematics 2025-09-11 Yao Wan

Lie symmetries of a Novikov geometrically integrable equation are found and group-invariant solutions are obtained. Local conservation laws up to second order are established as well as their corresponding conserved quantities. Sufficient…

Analysis of PDEs · Mathematics 2022-08-17 Nazime Sales Filho , Igor Leite Freire

We provide a natural simple argument using anistropic flows to prove the existence of weak solutions to Lutwak's $L^p$-Minkowski problem on $S^n$ which were obtained by other methods.

Analysis of PDEs · Mathematics 2023-07-25 Károly J. Böröczky , Pengfei Guan

Can the Minkowski sum of two compact convex bodies be made smoother by rotating one of them? We construct two infinitely differentiable strictly convex plane bodies such that after any generic rotation (in the Baire category sense) of one…

Differential Geometry · Mathematics 2017-03-03 Igor Belegradek , Zixin Jiang

A minimal space-like surface in Minkowski space-time is said to be of general type if it is free of degenerate points. The fact that minimal space-like surfaces of general type in Minkowski space-time admit canonical parameters of the first…

Differential Geometry · Mathematics 2018-05-09 Georgi Ganchev , Krasimir Kanchev

This paper deals with locally constrained inverse curvature flows in a broad class of Riemannian warped spaces. For a certain class of such flows we prove long time existence and smooth convergence to a radial coordinate slice. In the case…

Differential Geometry · Mathematics 2024-11-15 Julian Scheuer

We solve the capillary $L_p$-Christoffel--Minkowski problem in the half-space for $1<p<k+1$ in the class of even hypersurfaces. A crucial ingredient is a non-collapsing estimate that yields lower bounds for both the height and the capillary…

Analysis of PDEs · Mathematics 2026-01-01 Yingxiang Hu , Mohammad N. Ivaki

We construct and parametrize solutions to the constraint equations of general relativity in a neighborhood of Minkowski spacetime with arbitrary prescribed decay properties at infinity. We thus provide a large class of initial data for the…

Analysis of PDEs · Mathematics 2025-02-27 Allen Juntao Fang , Jérémie Szeftel , Arthur Touati

We consider the problem of lower bounding a generalized Minkowski measure of subsets of a convex body with a log-concave probability measure, conditioned on the set size. A bound is given in terms of diameter and set size, which is sharp…

Functional Analysis · Mathematics 2007-05-23 Ravi Montenegro

We consider the timelike minimal surface problem in Minkowski spacetimes and show local and global existence of such surfaces having arbitrary dimension $\geq 2$ and arbitrary co-dimension, provided they are initially close to a flat plane.

Differential Geometry · Mathematics 2007-05-23 Paul Allen , Lars Andersson , James Isenberg

In this paper, we establish the existence of smooth, origin-symmetric, strictly convex solutions to the prescribed even $L_p$ curvature problem.

Analysis of PDEs · Mathematics 2025-06-30 Yingxiang Hu , Mohammad N. Ivaki