Results 11 to 20 of about 9,102,050 (290)
Proceedings of the thirtieth annual symposium on Computational geometry, 2013 The collective motion of a set of moving entities like people, birds, or other animals, is characterized by groups arising, merging, splitting, and ending. Given the trajectories of these entities, we define and model a structure that captures all of such changes using the Reeb graph, a concept from topology. The trajectory grouping structure has three
Kevin Buchin +4 more
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The Lie Group Structure of the Butcher Group [PDF]
Foundations of Computational Mathematics, 2015 34 pages, TiKZ, v3: major revision, rewritten to increase readability, main results remain ...
Geir Bogfjellmo, Alexander Schmeding
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Group Structure as a Foundation for Entropies. [PDF]
Entropy (Basel)Entropy can signify different things. For instance, heat transfer in thermodynamics or a measure of information in data analysis. Many entropies have been introduced, and it can be difficult to ascertain their respective importance and merits. Here, we consider entropy in an abstract sense, as a functional on a probability space, and we review how ...
Jensen HJ, Tempesta P.
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On the Group Structure in Homotopy Groups [PDF]
Nagoya Mathematical Journal, 1954 Usually the group structure in a homotopy group is defined directly and explicitly. But the algebraic approach to the topology, now common, seems to raise the following question : is that the only group sturcture which is natural from the algebraic topological point of view?
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Medicina U.P.B., 2023 Objetivo: el objetivo del estudio fue evaluar el impacto de una intervención educativa grupal en el personal de salud para mejorar su práctica de ejercicio físico y la prescripción de esta a sus pacientes. Metodología: diseño preexperimental con medidas
Alfonso Avila García +2 more
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The structure of Selmer groups [PDF]
Proceedings of the National Academy of Sciences, 1997 The purpose of this article is to describe certain results and conjectures concerning the structure of Galois cohomology groups and Selmer groups, especially for abelian varieties. These results are analogues of a classical theorem of Iwasawa. We formulate a very general version of the Weak Leopoldt Conjecture.
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Extended topological group structure due to average reflection symmetry [PDF]
, 2015 We extend the single-particle topological classification of insulators and superconductors to include systems in which disorder preserves average reflection symmetry.
Diez, M. +3 more
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Hidden Quantum Group Structure in Einstein's General Relativity [PDF]
, 1997 A new formal scheme is presented in which Einstein's classical theory of General Relativity appears as the common, invariant sector of a one-parameter family of different theories.
A. Stern +22 more
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The structure of approximate groups [PDF]
Publications Mathématiques de l'IHÉS, 2012 Let K ⩾1 be a parameter. A K -approximate group is a finite set A in a (local) group which contains the identity, is symmetric, and such that A ⋅ A
Breuillard, E, Green, B, Tao, T
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Nature Conservation Research: Заповедная наука, 2023 In group-living animals, the social structure and organisation play a significant role in survival and reproduction. Understanding the social aspects of animal lives in the wild may be crucially important for effective conservation of threatened species.
Karina A. Karenina +2 more
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