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The paper is devoted to discretization of integral norms of functions from a given finite dimensional subspace. We use recent general results on sampling discretization to derive a new Marcinkiewicz type discretization theorem for the…

Numerical Analysis · Mathematics 2020-05-14 Vladimir Temlyakov

We investigate the possibility of improving the $p$-Poincar\'e inequality $\|\nabla_{\mathbb{H}^N} u\|_p \ge \Lambda_p \|u\|_p$ on the hyperbolic space, where $p>2$ and $\Lambda_p:=[(N-1)/p]^{p}$ is the best constant for which such…

Functional Analysis · Mathematics 2021-08-11 Elvise Berchio , Lorenzo D'Ambrosio , Debdip Ganguly , Gabriele Grillo

We consider the Cauchy problem for strictly hyperbolic $m$-th order partial differential equations with coefficients low-regular in time and smooth in space. It is well-known that the problem is $L^2$ well-posed in the case of Lipschitz…

Analysis of PDEs · Mathematics 2016-12-01 Massimo Cicognani , Daniel Lorenz

We study a general linear parabolic problem for Petrovskii parabolic differential system in Sobolev anisotropic distribution spaces of generalized smoothness. Slowly varying functions are used to characterize supplementary generalized…

Analysis of PDEs · Mathematics 2026-05-06 Valerii Los , Vladimir Mikhailets , Aleksandr Murach

The even Gaussian dual Minkowski problem studied by Feng, Hu and Xu, In this paper, we consider the even $L_p$ dual-Gaussian Minkowski problem for $p>1$. The existence of $o$-symmetric solution in the case $p>1$ is obtained.

Functional Analysis · Mathematics 2024-12-19 W. Shi , J. C. Liu

In the first part of the paper, we define an approximated Brunn-Minkowski inequality which generalizes the classical one for length spaces. Our new definition based only on distance properties allows us also to deal with discrete spaces.…

Metric Geometry · Mathematics 2007-10-26 Michel Bonnefont

In [Calc. Var., 57:5 (2018)], Hong-Ye-Zhang proposed the $p$-capacitary Orlicz-Minkowski problem and proved the existence of convex solutions to this problem by variational method for $p\in(1,n)$. However, the smoothness and uniqueness of…

Analysis of PDEs · Mathematics 2023-05-25 Bin Chen , Weidong Wang , Xia Zhao , Peibiao Zhao

The tangent hyperplanes of the "manifolds" of this paper equipped a so-called Minkowski product. It is neither symmetric nor bilinear. We give a method to handing such an object as a locally hypersurface of a generalized space-time model…

Differential Geometry · Mathematics 2010-06-07 Ákos G. Horváth

Motivated by recent accelerating cosmological model, we derive the solutions to vacuum Einstein equation in $(d+1)$-dimensional Minkowski space with $n$-dimensional hyperbolic manifold. The conditions of accelerating expansion are given in…

High Energy Physics - Theory · Physics 2009-11-10 Masato Ito

In this paper, we apply various methods to establish the uniqueness of solutions to some classes of anisotropic and isotropic curvature problems. Firstly, by employing integral formulas derived by S. S. Chern \cite{Ch59}, we obtain the…

Differential Geometry · Mathematics 2023-09-28 Haizhong Li , Yao Wan

The full set of solutions of $f(T)$ gravity with the Minkowski metric is considered in this note. At the 4-th order in perturbations around the trivial tetrad solution, a new mode is found explicitly. Its presence signals a strong coupling…

General Relativity and Quantum Cosmology · Physics 2021-02-03 Jose Beltran Jimenez , Alexey Golovnev , Tomi Koivisto , Hardi Veermae

Solving the homogeneous Bethe-Salpeter equation directly in Minkowski space is becoming a very alive field, since, in recent years, a new approach has been introduced, and the reachable results can be potentially useful in various areas of…

High Energy Physics - Theory · Physics 2019-04-19 Giovanni Salmè

We prove the log-Brunn-Minkowski conjecture for convex bodies with symmetries to $n$ independent hyperplanes, and discuss the equality case and the uniqueness of the solution of the related case of the logarithmic Minkowski problem. We also…

Functional Analysis · Mathematics 2022-03-04 Károly J. Böröczky , Pavlos Kalantzopoulos

Petrovskii elliptic systems of linear differential equations given on a closed smooth manifold are investigated on the extended Sobolev scale. This scale consists of all Hilbert spaces that are interpolation spaces with respect to the…

Analysis of PDEs · Mathematics 2020-07-28 Tetiana Zinchenko , Aleksandr Murach

The differential calculus on `non-standard' $h$-Minkowski spaces is given. In particular it is shown that, for them, it is possible to introduce coordinates and derivatives which are simultaneously hermitian.

q-alg · Mathematics 2011-07-13 J. A. de Azcárraga , F. Rodenas

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 prove an improved version of Poincar\'e-Hardy inequality in suitable subspaces of the Sobolev space on the hyperbolic space via Bessel pairs. As a consequence, we obtain a new Hardy type inequality with an improved constant (than the…

Analysis of PDEs · Mathematics 2023-03-20 Debdip Ganguly , Prasun Roychowdhury

In this note we develop a half-space model for the pseudo-hyperbolic space $\mathbb{H}^{p,q}$, for any $p,q$ with $p\geq 1$. This half-space model embeds isometrically onto the complement of a degenerate totally geodesic hyperplane in…

Differential Geometry · Mathematics 2024-10-25 Andrea Seppi , Enrico Trebeschi

We prove a Minkowski type inequality for weakly mean convex and star-shaped hypersurfaces in warped cylinders which are asymptotically flat or hyperbolic. In particular, we show that this sharp inequality holds for outward minimizing…

Differential Geometry · Mathematics 2024-09-17 Shujing Pan , Bo Yang

We consider a fully nonlinear partial differential equation associated to the intermediate $L^p$ Christoffel-Minkowski problem in the case $1<p<k+1$. We establish the existence of convex body with prescribed $k$-th even $p$-area measure on…

Differential Geometry · Mathematics 2017-09-05 Pengfei Guan , Chao Xia