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Related papers: Uniform structures on differential spaces

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The article introduces the concept of uniformity, which is formulated as a scheme of axioms. The connection of this concept with ordered sets is studied. The effectiveness of using axiom schemes as a convenient and short way of replacing…

Logic · Mathematics 2023-07-04 V. M. Zhuravlov

In this paper,\ the authors define a space with an uniform base at non-isolated points, give some characterizations of images of metric spaces by boundary-compact maps, and study certain relationship among spaces with special base…

General Topology · Mathematics 2011-06-22 Fucai Lin , Shou Lin

In a space-time, a conformal structure is defined by the distribution of light-cones. Geodesics are traced by freely falling particles, and the collection of all unparameterized geodesics determines the projective structure of the…

Differential Geometry · Mathematics 2015-10-02 Vladimir S. Matveev , Andrzej Trautman

The notion of composite system made up of distinguishable parties is investigated in the context of arbitrary convex spaces.

Quantum Physics · Physics 2019-08-21 Florio M. Ciaglia , Alberto Ibort , Giuseppe Marmo

We define a new category of non-archimedean analytic spaces over a complete discretely valued field, which we call uniformly rigid. It extends the category of rigid spaces, and it can be described in terms of bounded functions on products…

Algebraic Geometry · Mathematics 2011-03-30 Christian Kappen

This paper presents an algebraic construction of families of unitary matrices that achieve full diversity. They are obtained as subsets of cyclic division algebras.

Information Theory · Computer Science 2016-11-17 Frederique Oggier , Emmanuel Lequeu

We identify a strong structural obstruction to Uniform Separation in constructive arithmetic. The mechanism is independent of semantic content; it emerges whenever two distinct evaluator predicates are sustained in parallel and inference…

Logic · Mathematics 2025-12-16 Milan Rosko

The notions of discrete conformality on triangle meshes have rich mathematical theories and wide applications. The related notions of discrete uniformizations on triangle meshes, suggest efficient methods for computing the uniformizations…

Geometric Topology · Mathematics 2020-09-21 Tianqi Wu , Xiaoping Zhu

The algebra of observables for identical particles on a line is formulated starting from postulated basic commutation relations. A realization of this algebra in the Calogero model was previously known. New realizations are presented here…

High Energy Physics - Theory · Physics 2009-10-30 Serguei B. Isakov , Jon Magne Leinaas , Jan Myrheim , Alexios P. Polychronakos , Raimund Varnhagen

We point out that any stable generalized complex structure on a sphere bundle over a closed surface of genus at least two must be of constant type.

Differential Geometry · Mathematics 2025-01-17 Rafael Torres

A function which is analytic and bounded in the Unit disk is called a generator for the Hardy space or the Bergman space if polynomials in that function are dense in the corresponding space. We characterize generators in terms of sub-spaces…

Complex Variables · Mathematics 2024-10-30 Valentin V. Andreev , Miron B. Bekker , Joseph A. Cima

We show that if a flat group scheme acts properly, with finite stabilizers, on an algebraic space, then a quotient exists as a separated algebraic space. More generally we show any flat groupid for which the family of stabilizers is finite…

alg-geom · Mathematics 2008-02-03 Sean Keel , Shigefumi Mori

This paper focuses on distributive uninorms, which induce structures of commutative ordered semirings. We will show that the second uninorm must be locally internal on $A(e)$, and will present a complete characterization of the structure of…

General Mathematics · Mathematics 2024-10-29 Wenwen Zong , Yong Su , Hua-Wen Liu

This note provides a variational description of the most basic differential geometric structures on a smooth manifold.

Differential Geometry · Mathematics 2021-11-16 Gabriella Clemente

A priori, the set of birational transformations of an algebraic variety is just a group. We survey the possible algebraic structures that we may add to it, using in particular parametrised family of birational transformations.

Algebraic Geometry · Mathematics 2019-02-14 Jérémy Blanc

We study a generalisation of the concept of hyperuniformity to spheres of arbitrary dimension. It is shown that QMC-designs (and especially spherical designs) are hyperuniform in our sense.

Classical Analysis and ODEs · Mathematics 2020-07-27 Johann Brauchart , Peter Grabner , Wöden Kusner

We present a family of model structures on the category of multicomplexes. There is a cofibrantly generated model structure in which the weak equivalences are the morphisms inducing an isomorphism at a fixed stage of an associated spectral…

Algebraic Topology · Mathematics 2021-01-13 Xin Fu , Ai Guan , Muriel Livernet , Sarah Whitehouse

We present a notion of precompactness, and study some of its properties, in the context of apartness spaces whose apartness structure is not necessarily induced by any uniform one. The presentation lies entirely with a Bishop-style…

Logic in Computer Science · Computer Science 2015-07-01 Douglas S Bridges

We investigate commutator operations on compatible uniformities of an algebra. We present a commutator operation for compatible uniformities of an algebra in a congruence-modular variety which extends the commutator on congruences, and…

Rings and Algebras · Mathematics 2007-05-23 William H. Rowan

A discriminative structured analysis dictionary is proposed for the classification task. A structure of the union of subspaces (UoS) is integrated into the conventional analysis dictionary learning to enhance the capability of…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Wen Tang , Ashkan Panahi , Hamid Krim , Liyi Dai
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