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In this work we discuss a conjecture of Viterbo relating the symplectic capacity of a convex body and its volume. The conjecture states that among all 2n-dimensional convex bodies with a given volume the euclidean ball has maximal…

辛几何 · 数学 2007-05-23 Shiri Artstein-Avidan , Yaron Ostrover

In this paper, we investigate a class of quadratic Riemannian curvature functionals on closed smooth manifold $M$ of dimension $n\ge 3$ on the space of Riemannian metrics on $M$ with unit volume. We study the stability of these functionals…

微分几何 · 数学 2018-01-09 Weimin Sheng , Lisheng Wang

We prove that the partial derivative of the volume function of big classes along any real divisor in a compact Kaehler manifold is equal to the numerical restricted volume of that class to the divisor. A consequence of our main result is…

代数几何 · 数学 2023-08-01 Duc-Viet Vu

In this paper,we obtain two results on closed Reimainnian manifold $M\times [0,T]$.When $T$ is small enough,to any prescribed scalar curvature, the existence and uniqueness of metrics are obtained on the volume element preserving…

微分几何 · 数学 2007-05-23 Zhi-Zhang Wang

Let $ K $ be a convex body in $ \mathbb{R}^n $. We denote the volume of $ K $ by $ \vert K\vert $, and the polar body of its difference body $ K - K $ by $ (K - K)^{\circ} $. We provide a new proof of the well-known estimate \[ |K||(K -…

度量几何 · 数学 2025-11-20 Arkadiy Aliev

In this paper, we establish different sharp forms of Mahler's conjecture for $s$-concave even functions in dimensions $n$, for $n=1$ and $2$, for $s>-1/n$, thus generalizing our previous results in \cite{FN} on log-concave even functions in…

泛函分析 · 数学 2025-06-26 Matthieu Fradelizi , Elie Nakhle

In this paper, we systematically investigate the multidimensional $Z$-transform of functions with values in sequentially complete locally convex spaces over the field of complex numbers. We provide many structural characterizations, remarks…

泛函分析 · 数学 2026-02-17 Marko Kostic

In this paper we study multi-parameter projection theorems for fractal sets. With the help of these estimates, we recover results about the size of $A \cdot A+...+A \cdot A$, where $A$ is a subset of the real line of a given Hausdorff…

经典分析与常微分方程 · 数学 2011-06-29 B. Erdoğan , D. Hart , A. Iosevich

We prove several sharp distortion and monotonicity theorems for spherically convex functions defined on the unit disk involving geometric quantities such as spherical length, spherical area and total spherical curvature. These results can…

复变函数 · 数学 2022-04-05 Maria Kourou , Oliver Roth

In the present paper, the following convexity principle is proved: any closed convex multifunction, which is metrically regular in a certain uniform sense near a given point, carries small balls centered at that point to convex sets, even…

最优化与控制 · 数学 2015-04-13 Amos Uderzo

It is shown that a (curved) projective structure on a smooth manifold determines on the Poisson algebra of smooth, fiberwise-polynomial functions on the cotangent bundle a one-parameter family of graded star products. For a particular value…

微分几何 · 数学 2013-06-25 Daniel J. F. Fox

The optimization of shape functionals under convexity, diameter or constant width constraints shows numerical challenges. The support function can be used in order to approximate solutions to such problems by finite dimensional optimization…

最优化与控制 · 数学 2021-11-01 Pedro R. S. Antunes , Beniamin Bogosel

We give a sharp convexity estimate for L-functions which have a functional equation and an Euler product.

数论 · 数学 2015-05-13 D. R. Heath-Brown

We use the generalized Minkowski billiard characterization of the EHZ-capacity of Lagrangian products in order to reprove that the $4$-dimensional Viterbo conjecture holds for the Lagrangian products (any triangle/parallelogram in…

动力系统 · 数学 2022-09-22 Daniel Rudolf

We use perfectoid spaces associated to abelian varieties and Siegel moduli spaces to study torsion points and ordinary CM points. We reprove the Manin-Mumford conjecture i.e. Raynaud's theorem. We also prove the Tate-Voloch conjecture for a…

代数几何 · 数学 2022-07-07 Congling Qiu

We extend the framework of K-stability (Tian, Donaldson) to more general algebro-geometric setting, such as partial desingularisations of (fixed) singularities, (not necessarily flat) families over higher dimensional base and the classical…

代数几何 · 数学 2014-11-21 Yuji Odaka

We extend the notion of illumination bodies to Riemannian spaces of constant curvature and to projective Finsler geometries. We prove that the derivative of their volume defines a notion of surface area for convex bodies in these settings,…

度量几何 · 数学 2026-05-26 Rotem Assouline , Florian Besau , Elisabeth M. Werner

This article belongs to the area of geometric tomography, which is the study of geometric properties of solids based on data about their sections and projections. We describe a new direction in geometric tomography where different…

泛函分析 · 数学 2023-02-10 Apostolos Giannopoulos , Alexander Koldobsky , Artem Zvavitch

The main goal of this paper is to present a series of inequalities connecting the surface area measure of a convex body and surface area measure of its projections and sections. We present a solution of a question from S. Campi, P.…

度量几何 · 数学 2017-08-29 Alexander Koldobsky , Christos Saroglou , Artem Zvavitch

The pressure function is a fundamental object in various areas of mathematics. Its regularity is studied to derive insights into phase transitions in certain physical systems or to determine the Hausdorff dimension of self-affine sets. In…

概率论 · 数学 2025-01-08 Arnaud Hautecœur