Zobrazeno 1 - 10
of 22
pro vyhledávání: '"F. F. Lasheras"'
Publikováno v:
Proceedings of the American Mathematical Society. 147:1797-1804
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfe4aa4850140d3c5c0e3cdd414c97d8
https://doi.org/10.1090/proc/14373
https://doi.org/10.1090/proc/14373
Publikováno v:
Journal of Pure and Applied Algebra. 224:106300
In this paper, we consider an equivalence relation within the class of finitely presented discrete groups attending to their asymptotic topology rather than their asymptotic geometry. More precisely, we say that two finitely presented groups $G$ and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed0306f29468edf839c7736eafb2ed4c
https://doi.org/10.1016/j.jpaa.2019.106300
https://doi.org/10.1016/j.jpaa.2019.106300
Publikováno v:
Topology and its Applications. 160(5):720-729
In this paper we give detecting elements for the proper Lusternik–Schnirelmann category of any missing boundary 3-manifold. As a consequence, we determine the proper LS category of all orientable one-ended semistable open 3-manifolds. These results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56e452bf2e35395fdac2dce87db13e8a
Autor:
Ranja Roy, F. F. Lasheras
Publikováno v:
Revista Matemática Iberoamericana. 29:75-89
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d9d99c6ba4e30617ba83f9e6ab4012a
https://doi.org/10.4171/rmi/713
https://doi.org/10.4171/rmi/713
Publikováno v:
Mathematical Proceedings of the Cambridge Philosophical Society. 152:223-249
We give sufficient conditions for the existence of detecting elements for the Lusternik–Schnirelmann category in proper homotopy. As an application we determine the proper LS category of some semistable one-ended open 3-manifolds.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95decc6a68c428f67c7c4bc52a072401
https://doi.org/10.1017/s0305004111000417
https://doi.org/10.1017/s0305004111000417
Publikováno v:
Journal of Mathematical Sciences. 144:4431-4436
A finitely presented group G is said to be properly 3-realizable if there exists a compact 2-polyhedron K with π1 (K) ≅ G whose universal cover has the proper homotopy type of a 3-manifold (with boundary). We discuss the behavior of this property
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::342ff3264a67a42971395768c805ea02
https://doi.org/10.1007/s10958-007-0281-4
https://doi.org/10.1007/s10958-007-0281-4
Publikováno v:
Topology and its Applications. 153:580-604
This paper presents a study of one-ended locally finite CW-complexes with proper L–S category ⩽2. We detect the class of towers of groups which can be the fundamental pro-group of a space of proper L–S category 2. A second part of the paper is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f7a53e221c12e61b58985e35e7e1fd5
https://doi.org/10.1016/j.topol.2005.01.032
https://doi.org/10.1016/j.topol.2005.01.032
Autor:
F. F. Lasheras, M. Cárdenas
Publikováno v:
Topology and its Applications. 153:337-349
We study the class of those finitely presented groups which are “properly 3-realizable”, i.e., those groups G for which there exists a compact 2-polyhedron having G as fundamental group and whose universal cover is proper homotopy equivalent to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07bf8993bbc33cb8b8462d06eaf9b6e0
https://doi.org/10.1016/j.topol.2003.10.011
https://doi.org/10.1016/j.topol.2003.10.011
Autor:
M. Cárdenas, F. F. Lasheras
Publikováno v:
Geometric Methods in Group Theory. :1-9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01d9b9055d68169906bba427ece6b864
https://doi.org/10.1090/conm/372/06869
https://doi.org/10.1090/conm/372/06869
Publikováno v:
Proceedings of the American Mathematical Society. 133:1527-1535
A finitely presented group G G is said to be properly 3 3 -realizable if there exists a compact 2 2 -polyhedron K K with π 1 ( K ) ≅ G \pi _1(K) \cong G and whose universal cover K ~ \tilde {K} has the proper homotopy type of a (p.l.) 3 3 -manifol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::876f351ade68f214993102f835275c7c
https://doi.org/10.1090/s0002-9939-04-07628-2
https://doi.org/10.1090/s0002-9939-04-07628-2