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The main theorem of "S. J. Kov\'acs: The cone of curves of a K3 surface, Math. Ann. 300 (1994), no. 4, 681-691" is proved in arbitrary characteristic. The proof is essentially the same as in the original paper where it was stated only over…

Algebraic Geometry · Mathematics 2013-09-24 Sándor J Kovács

Within a theory of the existing fundamental length on the order of Planck's a high-energy deformation of the General Relativity for the space with horizon has been constructed. On this basis, Markov's work of the early eighties of the last…

General Relativity and Quantum Cosmology · Physics 2015-05-27 A. E. Shalyt-Margolin

We generalize our theorems in "Mirror Principle I" to a class of balloon manifolds. Many of the results are proved for convex projective manifolds. In a subsequent paper, Mirror Principle III, we will extend the results to projective…

Algebraic Geometry · Mathematics 2007-05-23 Bong H. Lian , Kefeng Liu , S. T. Yau

In this article we propose a generalization of the 2-dimensional notions of convexity resp. being star-shaped to symplectic vector spaces. We call such curves symplectically convex resp. symplectically star-shaped. After presenting some…

Symplectic Geometry · Mathematics 2022-12-29 Peter Albers , Serge Tabachnikov

In this paper, we show that any embedded capillary hypersurface in the half-space with anisotropic constant mean curvature is a truncated Wulff shape. This extends Wente's result \cite{Wente80} to the anisotropic case and He-Li-Ma-Ge's…

Differential Geometry · Mathematics 2024-05-09 Xiaohan Jia , Guofang Wang , Chao Xia , Xuwen Zhang

We propose a simple and efficient real-space approach for the calculation of the ground-state energies of Wigner crystals in 1, 2, and 3 dimensions. To be precise, we calculate the first two terms in the asymptotic expansion of the total…

Strongly Correlated Electrons · Physics 2021-06-23 Estefania Alves , Gian Luigi Bendazzoli , Stefano Evangelisti , J. Arjan Berger

We show that the natural "convolution" on the space of smooth, even, translation-invariant convex valuations on a euclidean space $V$, obtained by intertwining the product and the duality transform of S. Alesker, may be expressed in terms…

Differential Geometry · Mathematics 2008-03-27 Andreas Bernig , Joseph H. G. Fu

Ben Andrews classified the limiting shape for isotropic curvature flow corresponding to the solutions of the $L_p$-Minkowski problem as $p\to-\infty$ in the planar case. In this paper, we use the group-invariant method to study the…

Analysis of PDEs · Mathematics 2025-01-27 Shi-Zhong Du , Xu-Jia Wang , Baocheng Zhu

A Minkowski class is a closed subset of the space of convex bodies in Euclidean space Rn which is closed under Minkowski addition and non-negative dilatations. A convex body in Rn is universal if the expansion of its support function in…

Metric Geometry · Mathematics 2012-08-01 Rolf Schneider , Franz E. Schuster

The Universe is a physical object. Physical objects have shapes and sizes. General relativity is insufficient to describe the global shape and size of the Universe: the Hilbert-Einstein equations only treat limiting quantities towards an…

Astrophysics · Physics 2007-05-23 B. F. Roukema

We present an alternative derivation and geometrical formulation of Verlinde topological field theory, which may describe scattering at center of mass energies comparable or larger than the Planck energy. A consistent trunckation of 3+1…

High Energy Physics - Theory · Physics 2009-10-22 Renata Kallosh

In this paper we study the dual Orlicz-Minkowski problem, which is a generalization of the dual Minkowski problem in convex geometry. By considering a geometric flow involving Gauss curvature and functions of normal vectors and radial…

Analysis of PDEs · Mathematics 2020-07-17 Li Chen , YanNan Liu , Jian Lu , Ni Xiang

The normal map given by Birkhoff orthogonality yields extensions of principal, Gaussian and mean curvatures to surfaces immersed in three-dimensional spaces whose geometry is given by an arbitrary norm and which are also called Minkowski…

Differential Geometry · Mathematics 2018-05-08 Vitor Balestro , Horst Martini , Ralph Teixeira

The concept of convex compactness, weaker than the classical notion of compactness, is introduced and discussed. It is shown that a large class of convex subsets of topological vector spaces shares this property and that is can be used in…

Functional Analysis · Mathematics 2010-06-02 Gordan Zitkovic

This paper shows how beginning with Justus Grassmann's work, Hermann Grassmann was influenced in his mathematical thinking by crystallography. H. Grassmann's Ausdehnungslehre in turn had a decisive influence on W.K. Clifford in the genesis…

Materials Science · Physics 2013-06-11 Eckhard Hitzer

In this paper, we showed that for some given suitable density and pressure, there exist infinitely many compactly supported solutions with prescribed energy profile. The proof is mainly based on the convex integration scheme. We construct…

Analysis of PDEs · Mathematics 2024-05-15 Anxiang Huang

We prove that any classical affine W-algebra W(g,f), where g is a classical Lie algebra and f is an arbitrary nilpotent element of g, carries an integrable Hamiltonian hierarchy of Lax type equations. This is based on the theories of…

Mathematical Physics · Physics 2018-06-11 Alberto De Sole , Victor G. Kac , Daniele Valeri

In December 1907, Minkowski expressed the Maxwell equations in the very beautiful and compact 4-dimensional form: lor f=-s, lor F^*=0. Here `lor', an abbreviation of Lorentz, represents the 4-dimensional differential operator. We study…

General Relativity and Quantum Cosmology · Physics 2009-11-13 Friedrich W. Hehl

Recently, Theophilou (J. Chem.Phys {\bf 149} 074104 (2018)) showed that a set of spherically symmetric densities determines uniquely the external potential in molecules and solids. Here, spherically symmetric Kohn-Sham-like equations are…

Chemical Physics · Physics 2021-10-27 Ágnes Nagy , Kalevi Kokko , Jesse Huhtala , Torbjörn Björkman , Levente Vitos

We consider the Lorenz equations, a system of three dimensional ordinary differential equations modeling atmospheric convection. These equations are chaotic and hard to study even numerically, and so a simpler "geometric model" has been…

Dynamical Systems · Mathematics 2024-05-14 Tali Pinsky
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