Listar Artículos (Geometría y Topología) por agencia financiadora "Ministerio de Educación y Ciencia (MEC). España"
Mostrando ítems 1-11 de 11
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Amalgamated products and properly 3-realizable groups
(Elsevier, 2007-01)In this paper, we show that the class of all properly 3-realizable groups is closed under amalgamated free products (and ...
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B.-Y. Chen's inequality for submanifolds of generalized space forms
(Indian National Science Academy, 2007-06)In this article, we investigate sharp inequalities involving δ-invariants for submanifolds in both generalized complex space forms and generalized Sasakian space forms, with arbitrary codimension.
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Cellular covers of local groups
(Springer, 2018-12)We prove that, in the category of groups, the composition of a cellularization and a localization functor need not be idempotent. This provides a negative answer to a question of Emmanuel Dror Farjoun.
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Critical elements of proper discrete Morse functions
(Editorial Board of Mathematica Pannonica, 2008)The aim of this paper is to study the notion of critical element of a proper discrete Morse function defined on non-compact ...
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On the connectivity of skeletons of pseudomanifolds with boundary
(Mathematical Institute, Academy of Sciences of the Czech Republic, 2002)In this note we show that 1-skeletons and 2-skeletons of n-pseudomanifolds with full boundary are (n+ 1)-connected graphs and n-connected 2-complexes, respectively. This generalizes previous results due to Barnette and Woon.
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On the functoriality of cohomology of categories
(Elsevier, 2006-03)In this paper we show that the Baues-Wirsching complex used to define cohomology of categories is a 2-functor from a certain ...
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On the idempotency of some composite functors
(Springer, 2012-01)We present examples of localization functors whose composition with certain cellularization functors is not idempotent, and vice versa.
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On the topology of locally 2-connected Peano continua
(Rocky Mountain Mathematics Consortium, 2012)Several recent results by Thomassen ([23 The locally connected compatc metric spaces embeddable in the plane, Combinatorica ...
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One-relator groups and proper 3-realizability
(European Mathematical Society, 2009)How different is the universal cover of a given finite 2-complex from a 3-manifold (from the proper homotopy viewpoint)? ...
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Sasaki-Einstein and paraSasaki-Einstein metrics from (κ,μ)-structures
(Elsevier, 2013-11)We prove that every contact metric (κ, µ)-space admits a canonical η-Einstein Sasakian or η-Einstein paraSasakian metric. ...
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The cellular structure of the classifying spaces of finite groups
(Springer, 2011-08)In this paper we obtain a description of the BZ/p-cellularization (in the sense of Dror-Farjoun) of the classifying spaces of all finite groups, for all primes p.