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Schmidt's theorem is significantly generalized, to partitions in which periodic but otherwise arbitrary subsets of parts are counted or uncounted. The identification of such sets of partitions with colored partitions satisfying certain…

Combinatorics · Mathematics 2022-07-15 George E. Andrews , William J. Keith

In this paper, we extend the fundamental theorem for submanifolds to general ambient spaces by viewing it as a higher codimensional Cartan-Ambrose-Hicks theorem. The key ingredient in obtaining this is a generalization of development of…

Differential Geometry · Mathematics 2025-03-11 Chengjie Yu

In this paper we present a rigidity theorem for locally isometric hypersurfaces with a curvature restriction in de Sitter space. This is an analogue to the case for Riemannian space forms given by Guan and Shen in [5].

Differential Geometry · Mathematics 2020-06-09 Tristan Hasson

The notions of (metric) hypersurface data were introduced in [Mars,2013] as a tool to analyze, from an abstract viewpoint, hypersurfaces of arbitrary signature in pseudo-riemannian manifolds. In this paper, general geometric properties of…

General Relativity and Quantum Cosmology · Physics 2024-02-13 Marc Mars

In this paper we prove a generalisation of Schlenk's theorem about the existence of contractible periodic Reeb orbits on stable, displaceable hypersurfaces in symplectically aspherical, geometrically bounded, symplectic manifolds, to a…

Symplectic Geometry · Mathematics 2024-05-07 Yannis Bähni

Recently, there are many developments on the second main theorem for holomorphic curves into algebraic varieties intersecting divisors in general position or subgeneral position. In this paper, we refine the concept of subgeneral position…

Complex Variables · Mathematics 2018-02-26 Qingchun Ji , Qiming Yan , Guangsheng Yu

Necessary and sufficient conditions are given for the existence of extended Schmidt decompositions, with more than two subspaces.

Quantum Physics · Physics 2009-10-28 Asher Peres

Conditions, related to the so-called bending problem are considered for hypersurfaces of a pseudo-Euclidean space. Corresponding theorems are proved.

Differential Geometry · Mathematics 2010-08-31 Ognian Kassabov

In this work, we prove a version of the fundamental theorem of submanifolds to target manifolds with warped structure.

Differential Geometry · Mathematics 2015-02-16 Carlos do Rei Filho , Feliciano Vitório

We give a short proof of the main result of our previous paper [2]: every Schmidt subspace of a Hankel operator is the image of a model space by an isometric multiplier. This class of subspaces is closely related to nearly $S^*$-invariant…

Functional Analysis · Mathematics 2019-07-15 Alexander Pushnitski , Patrick Gerard

In 1979, B. Shiffman conjectured that if f is an algebraically nondegenerate holomorphic map of C into P^n and D_1,...,D_q are hypersurfaces in P^n in general position, then the sum of the defects is at most n+1. This conjecture was proved…

Complex Variables · Mathematics 2014-12-01 Gerd Dethloff , Tran Van Tan

We consider Schmidt's game on the space of compact subsets of a given metric space equipped with the Hausdorff metric, and the space of continuous functions equipped with the supremum norm. We are interested in determining the generic…

Metric Geometry · Mathematics 2021-03-26 Ábel Farkas , Jonathan M. Fraser , Erez Nesharim , David Simmons

We obtain a gradient estimate for the Gauss maps from complete spacelike constant mean curvature hypersurfaces in Minkowski space into the hyperbolic space. As applications, we prove a Bernstein theorem which says that if the image of the…

dg-ga · Mathematics 2008-02-03 Huai-Dong Cao , Ying Shen , Shunhui Zhu

We develope basic geometric quantities and properties of hypersurfaces in Carnot groups.

Differential Geometry · Mathematics 2007-05-23 D. Danielli , N. Garofalo , D. M. Nhieu

De Sitter spacetime can be separated into two parts along two kinds of hypersurfaces and the half-de Sitter spacetimes are covered by the planar and hyperbolic coordinates respectively. Two positive energy theorems were proved previously…

General Relativity and Quantum Cosmology · Physics 2015-05-28 Zhuobin Liang , Xiao Zhang

This paper examines minimal hypersurfaces in sub-Riemannian Heisenberg groups. We extend the celebrated Simons formula and Kato inequality to the sub-Riemannian setting, and we apply them to obtain integral curvature estimates for stable…

Differential Geometry · Mathematics 2025-05-29 Gianmarco Giovannardi , Andrea Pinamonti , Simone Verzellesi

In this paper, we establish a uniqueness theorem for algebraically nondegenerate meromorphic maps of C^m into C P^n and slowly moving hypersurfaces Q_j in C P^n, j=1,...,q in (weakly) general position, where q depends effectively on n and…

Complex Variables · Mathematics 2014-12-01 Gerd Dethloff , Tan Van Tran

This paper deals with the quantitative Schmidt's subspace theorem and the general from of the second main theorem, which are two correspondence objects in Diophantine approximation theory and Nevanlinna theory. In this paper, we give a new…

Number Theory · Mathematics 2022-11-15 Si Duc Quang

We prove a remarkable generalization of a convexity theorem for semisimple symmetric spaces G/H established earlier in 1986 by the second named author. The latter result generalized Kostant's non-linear convexity theorem for the Iwasawa…

Representation Theory · Mathematics 2015-03-11 Dana Balibanu , Erik van den Ban

We apply an idea of Levin to obtain a non-truncated second main theorem for non-Archimedean analytic maps approximating algebraic hypersurfaces in subgeneral position. In some cases, for example when all the hypersurfaces are non-linear and…

Algebraic Geometry · Mathematics 2024-10-31 Ta Thi Hoai An , William Cherry , Nguyen Viet Phuong