Zobrazeno 1 - 9
of 9
pro vyhledávání: '"20F65, 53C23"'
Autor:
Babenko, Ivan, Moulla, Thiziri
Let $G$ be a finitely presented group. A new complexity called \textit{Karoubi-Weibel complexity} or \textit{covering type}, is defined for $G$. The construction is inspired by recent work of Karoubi and Weibel \cite{KW}, initially applied to topolog
Externí odkaz:
http://arxiv.org/abs/2111.00852
Publikováno v:
Journal Mathematical Analysis and Applications 459 (2018) 686-716
Amenability for groups can be extended to metric spaces, algebras over commutative fields and $C^*$-algebras by adapting the notion of F{\o}lner nets. In the present article we investigate the close ties among these extensions and show that these thr
Externí odkaz:
http://arxiv.org/abs/1706.04875
Autor:
Kuzmin, Kirill
In this paper we explore coarse properties of cusp-decomposable manifolds first defined by Nguy\^{e}n Phan. We describe the large scale geometry of the universal cover of a cusp-decomposable manifold and of quasi-isometries between two such universal
Externí odkaz:
http://arxiv.org/abs/1704.06638
Publikováno v:
J. Differential Geom. 95(1) (2013), 39-51
Let G be a connected Lie group, G^d the underlying discrete group, and BG, BG^d their classifying spaces. Let R denote the radical of G. We show that all classes in the image of the canonical map in cohomology H^*(BG,R)->H^*(BG^d,R) are bounded if an
Externí odkaz:
http://arxiv.org/abs/1202.4069
Autor:
Rieffel, Marc A.
Publikováno v:
Documenta Mathematica 7 (2002) 605-651
Let $\ell$ be a length function on a group $G$, and let $M_{\ell}$ denote the operator of pointwise multiplication by $\ell$ on $\bell^2(G)$. Following Connes, $M_{\ell}$ can be used as a ``Dirac'' operator for $C_r^*(G)$. It defines a Lipschitz semi
Externí odkaz:
http://arxiv.org/abs/math/0205195
Autor:
Bruno Duchesne
Publikováno v:
Handbook of Group Actions, Volume III
Handbook of Group Actions, Volume III, pp.103-143, 2018
HAL
Handbook of Group Actions, Volume III, pp.103-143, 2018
HAL
Written for the handbook of group actions; International audience; In this survey article, we present some panorama of groups acting on metric spaces of non-positive curvature. We introduce the main examples and their rigidity properties , we show th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::516a701c71925aad322236ec31feb1fb
https://hal.archives-ouvertes.fr/hal-01288346v3/document
https://hal.archives-ouvertes.fr/hal-01288346v3/document
Amenability for groups can be extended to metric spaces, algebras over commutative fields and $C^*$-algebras by adapting the notion of F{\o}lner nets. In the present article we investigate the close ties among these extensions and show that these thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83b09af99bab3c0239cd7082593a3111
Publikováno v:
Journal of Differential Geometry
Journal of Differential Geometry, 2013, 95 (1), pp.39-51. ⟨10.4310/jdg/1375124608⟩
J. Differential Geom. 95, no. 1 (2013), 39-51
Journal of Differential Geometry, 2013, 95 (1), pp.39-51
Journal of Differential Geometry, 2013, 95 (1), pp.39-51. ⟨10.4310/jdg/1375124608⟩
J. Differential Geom. 95, no. 1 (2013), 39-51
Journal of Differential Geometry, 2013, 95 (1), pp.39-51
Let G be a connected Lie group, G^d the underlying discrete group, and BG, BG^d their classifying spaces. Let R denote the radical of G. We show that all classes in the image of the canonical map in cohomology H^*(BG,R)->H^*(BG^d,R) are bounded if an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de6714f72266b9ba1c93fd46387275c9
http://arxiv.org/abs/1202.4069
http://arxiv.org/abs/1202.4069
Autor:
Rieffel, Marc A.
Publikováno v:
Documenta Mathematica. 7:605-651
Let $\ell$ be a length function on a group $G$, and let $M_{\ell}$ denote the operator of pointwise multiplication by $\ell$ on $\bell^2(G)$. Following Connes, $M_{\ell}$ can be used as a ``Dirac'' operator for $C_r^*(G)$. It defines a Lipschitz semi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55c18644a12cc592d78fa98b1a60d9bc
https://doi.org/10.4171/dm/133
https://doi.org/10.4171/dm/133
