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We are concerned with the existence and uniqueness of solutions with only bounded density for the barotropic compressible Navier-Stokes equations. Assuming that the initial velocity has slightly sub-critical regularity and that the initial…

Analysis of PDEs · Mathematics 2020-01-08 Raphaël Danchin , Francesco Fanelli , Marius Paicu

In this paper we prove rigidity results for two-dimensional, closed, immersed, non-necessarily convex, self-similar solutions of a wide class of fully non-linear parabolic flows in $\mathbb{R}^3$. We show this self-similar solutions are the…

Differential Geometry · Mathematics 2020-09-23 Hilário Alencar , Gregório Silva Neto , Detang Zhou

In this paper, given a prescribed measure on $\mathbb{S}^1$ whose density is bounded and positive, we establish a uniform diameter estimate for solutions to the planar $L_p$ dual Minkowski problem when $0<p<1$ and $q\ge 2$. We also prove…

Differential Geometry · Mathematics 2022-08-15 Minhyun Kim , Taehun Lee

The Minkowski problem of harmonic measures was first studied by Jerison [19]. Recently, Akman and Mukherjee [1] studied the Minkowski problem corresponding to $p$-harmonic measures on convex domains and generalized Jerison's results. In…

Analysis of PDEs · Mathematics 2024-05-07 Chao Li , Xia Zhao

In this paper, we study the long-time existence and asymptotic behavior for a class of anisotropic non-homogeneous curvature flows without global forcing terms. By the stationary solutions of such anisotropic flows, we obtain existence…

Differential Geometry · Mathematics 2024-01-03 Shanwei Ding , Guanghan Li

We prove the existence and uniqueness of weak solutions to a class of anisotropic elliptic equations with coefficients of convection term belonging to some suitable Marcinkiewicz spaces. Some useful a priori estimates and regularity results…

Analysis of PDEs · Mathematics 2023-07-27 Giuseppina di Blasio , Filomena Feo , Gabriella Zecca

Let $K$ be a smooth, origin-symmetric, strictly convex body in $\mathbb{R}^n$. If for some $\ell\in GL(n,\mathbb{R})$, the anisotropic Riemannian metric $\frac{1}{2}D^2 \Vert\cdot\Vert_{\ell K}^2$, encapsulating the curvature of $\ell K$,…

Differential Geometry · Mathematics 2025-06-30 Mohammad N. Ivaki , Emanuel Milman

We consider the minimization problem for an integral functional $J$, possibly non-convex and non-coercive in $W^{1,1}_0(\Omega)$, where $\Omega\subset\R^n$ is a bounded smooth set. We prove sufficient conditions in order to guarantee that a…

Analysis of PDEs · Mathematics 2019-07-25 G. Crasta , A. Malusa

In this article, we establish some uniqueness and symmetry results of self-similar solutions to curvature flows by some homogeneous speed functions of principal curvatures in some warped product spaces. In particular, we proved that any…

Differential Geometry · Mathematics 2024-11-14 Frederick Tsz-Ho Fong

P. Salani [Adv. Math., 229 (2012)] introduced the $k$-torsional rigidity associated with a $k$-Hessian equation and obtained the Brunn-Minkowski inequalities $w.r.t.$ the torsional rigidity in $\mathbb{R}^3$. Following this work, we first…

Differential Geometry · Mathematics 2026-03-31 Xia Zhao , Peibiao Zhao

We discuss the smoothness and strict convexity of the solution of the $L_p$ Minkowski problem when $p<1$ and the given measure has a positive density function.

Metric Geometry · Mathematics 2020-02-05 Gabriele Bianchi , Károly J. Böröczky , Andrea Colesanti

Presented are two results on the formation of finite time singularities of solutions to the compressible Euler equations in two and three space dimensions for isentropic, polytropic, ideal fluid flows. The initial velocity is assumed to be…

Analysis of PDEs · Mathematics 2012-03-23 Zhen Lei , Yi Du , Qingtian Zhang

Here we provide uniqueness of vanishing viscosity solutions to sub-Riemannian mean curvature flow problem, which was known only far from characteristic points or under special symmetry condition. We employ vanishing viscosity approach and…

Analysis of PDEs · Mathematics 2018-08-01 Emre Baspinar , Giovanna Citti

We prove an estimate for solutions to the linearized Ricci flow system on closed 3-manifolds. This estimate is a generalization of Hamilton's pinching is preserved estimate for the Ricci curvatures of solutions to the Ricci flow on…

Differential Geometry · Mathematics 2007-05-23 Greg Anderson , Bennett Chow

In this paper we make an analysis of self-similar solutions for the mean curvature flow (MCF) by surfaces of revolution and ruled surfaces in $\mathbb{R}^{3}$. We prove that self-similar solutions of the MCF by non-cylindrival surfaces and…

Differential Geometry · Mathematics 2023-04-12 Benedito Leandro , Rafael Novais , Hiuri F. S. dos Reis

This paper concerns the initial boundary value problem of three-dimensional inhomogeneous incompressible liquid crystal flows with density-dependent viscosity. When the viscosity coefficient $\mu(\rho)$ is a power function of the density…

Analysis of PDEs · Mathematics 2024-10-17 Jiaxu Li , Yu Mei , Rong Zhang

Lutwak, Yang and Zhang \cite{LYZ2018} introduced the $L_p$ dual curvature measure that unifies several other geometric measures in dual Brunn-Minkowski theory and Brunn- Minkowski theory. Motivated by works in \cite{LYZ2018}, we consider…

Metric Geometry · Mathematics 2021-03-25 Hejun Wang , Jiazu Zhou

In this paper we study a contracting flow of closed, convex hypersurfaces in the Euclidean space $\mathbb R^{n+1}$ with speed $f r^{\alpha} K$, where $K$ is the Gauss curvature, $r$ is the distance from the hypersurface to the origin, and…

Analysis of PDEs · Mathematics 2017-12-22 Qi-Rui Li , Weimin Sheng , Xu-Jia Wang

In an earlier paper \cite{mazeng} the authors introduced the notion of curvature entropy, and proved the plane log-Minkowski inequality of curvature entropy under the symmetry assumption. In this paper we demonstrate the plane log-Minkowski…

Metric Geometry · Mathematics 2022-11-29 Chunna Zeng , Xu Dong , Yaling Wang , Lei Ma

For fixed positive integer $n$, $p\in[0,1]$, $a\in(0,1)$, we prove that if a function $g:\mathbb{S}^{n-1}\to \mathbb{R}$ is sufficiently close to 1, in the $C^a$ sense, then there exists a unique convex body $K$ whose $L_p$ curvature…

Functional Analysis · Mathematics 2024-05-07 Károly J. Böröczky , Christos Saroglou