Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Indira Chatterji"'
Publikováno v:
Proceedings of the Edinburgh Mathematical Society
Proceedings of the Edinburgh Mathematical Society, Cambridge University Press (CUP), 2021, pp.1-8. ⟨10.1017/S0013091521000663⟩
Proceedings of the Edinburgh Mathematical Society, Cambridge University Press (CUP), 2021, pp.1-8. ⟨10.1017/S0013091521000663⟩
We generalize results of Thomas, Allcock, Thom–Petersen, and Kar–Niblo to the first $\ell ^{2}$-Betti number of quotients of certain groups acting on trees by subgroups with free actions on the edge sets of the graphs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::916a97c0328072759e1d8bd86cb79047
https://hal.archives-ouvertes.fr/hal-03424496
https://hal.archives-ouvertes.fr/hal-03424496
Publikováno v:
Documenta Mathematica
Documenta Mathematica, Universität Bielefeld, 2018
Documenta Mathematica, Universität Bielefeld, 2018
We show that relative Property (T) for the abelianization of a nilpotent normal subgroup implies relative Property (T) for the subgroup itself. This and other results are a consequence of a theorem of independent interest, which states that if $H$ is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bc3f1783fb1cffa7d5c27b8282c241b
https://hal.archives-ouvertes.fr/hal-03424527/file/1702.01801.pdf
https://hal.archives-ouvertes.fr/hal-03424527/file/1702.01801.pdf
Autor:
François Dahmani, Indira Chatterji
We show that for any group $G$ that is hyperbolic relative to subgroups that admit a proper affine isometric action on a uniformly convex Banach space, then $G$ acts properly on a uniformly convex Banach space as well.
28 pages, revised
28 pages, revised
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ee18149f01835a46a59dbeaf8295fe5
http://arxiv.org/abs/1801.08047
http://arxiv.org/abs/1801.08047
In this paper we propose cryptosystems based on subgroup distortion in hyperbolic groups. We also include concrete examples of hyperbolic groups as possible platforms.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94a54cb766372efea87aa6a81c33c2fd
Publikováno v:
Quarterly Journal of Mathematics
Quarterly Journal of Mathematics, Oxford University Press (OUP), 2016, pp.0-1. ⟨10.1093/qmath/haw030⟩
Quarterly Journal of Mathematics, 2016, pp.0-1. ⟨10.1093/qmath/haw030⟩
Quarterly Journal of Mathematics, Oxford University Press (OUP), 2016, pp.0-1. ⟨10.1093/qmath/haw030⟩
Quarterly Journal of Mathematics, 2016, pp.0-1. ⟨10.1093/qmath/haw030⟩
Let G be a connected complex Lie group. We show that any flat principal G-bundle over any finite CW-complex pulls back to a trivial bundle over some finite covering space of the base space if and only if each real characteristic class of positive deg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1991f0b4a21ba630ba415f08e10fdfcc
https://hal.archives-ouvertes.fr/hal-01484561
https://hal.archives-ouvertes.fr/hal-01484561
Autor:
Indira Chatterji, Guido Mislin
Publikováno v:
Contemporary Mathematics. :73-86
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed06f81ee5178f3e35bb8b8792ba692b
https://doi.org/10.1090/conm/399/07513
https://doi.org/10.1090/conm/399/07513
Autor:
Kim Ruane, Indira Chatterji
Publikováno v:
GAFA Geometric And Functional Analysis
GAFA Geometric And Functional Analysis, 2005, 398, pp.321
GAFA Geometric And Functional Analysis, 2005, 398, pp.321
We explain some simple methods to establish the property of Rapid Decay for a number of groups arising geometrically. We also give new examples of groups with the property of Rapid Decay. In particular we establish the property of Rapid Decay for all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b07f2bc0494b70df4695baeb1b6e34e
https://doi.org/10.1007/s00039-005-0508-9
https://doi.org/10.1007/s00039-005-0508-9
Autor:
Indira Chatterji
Publikováno v:
Geometriae Dedicata. 96:161-177
We apply V. Lafforgue′s techniques to establish property (RD) for cocompact lattices in a finite product of rank one Lie groups with Lie groups whose restricted root system is of type A2.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65a74cae880149f9c54731baca89c0ec
https://doi.org/10.1023/a:1022184513930
https://doi.org/10.1023/a:1022184513930
Publikováno v:
Journal of Topology
We define a bounded cohomology class, called the {\em median class}, in the second bounded cohomology -- with appropriate coefficients --of the automorphism group of a finite dimensional CAT(0) cube complex X. The median class of X behaves naturally
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcad14650da353dc1f117bf3e4717ff8
http://arxiv.org/abs/1212.1585
http://arxiv.org/abs/1212.1585
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