Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Uri Bader"'
Publikováno v:
Fundamenta Mathematicae. 246:217-255
Let $G$ be a locally compact amenable group. We say that G has property (M) if every closed subgroup of finite covolume in G is cocompact. A classical theorem of Mostow ensures that connected solvable Lie groups have property (M). We prove a non-Arch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6b1b38ec5e47386cea2616dbaeea8af
https://doi.org/10.4064/fm572-9-2018
https://doi.org/10.4064/fm572-9-2018
Autor:
Uri Bader, Aviv Taller
We initiate a systematic investigation of group actions on compact medain algebras via the corresponding dynamics on their spaces of measures. We show that a probability measure which is invariant under a natural push forward operation must be a unif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ce724b1d3d84eec7c4637c80ff78180
Autor:
Uri Bader, Piotr W. Nowak
Publikováno v:
Journal of Functional Analysis
Given a group satisfying sufficient finiteness properties, we discuss a group algebra criterion for vanishing of all its cohomology groups with unitary coefficients in a certain degree.
Comment: Final version, to appear in the Journal of Functio
Comment: Final version, to appear in the Journal of Functio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eea6286a13c0003379f2da2dac130aba
Autor:
Uri Bader, Christian Rosendal
Publikováno v:
Geometriae Dedicata. 196:1-9
M. Gromov has shown that any two finitely generated groups $$\Gamma $$ and $$\Lambda $$ are quasi-isometric if and only if they admit a topological coupling, i.e., a commuting pair of proper continuous cocompact actions $$\Gamma \curvearrowright X \c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6944caf8997e06f238d9df65122c1725
https://doi.org/10.1007/s10711-017-0300-7
https://doi.org/10.1007/s10711-017-0300-7
Autor:
Uri Bader, Tsachik Gelander
Publikováno v:
Groups, Geometry, and Dynamics. 11:1003-1039
We study equicontinuous actions of semisimple groups and some generalizations. We prove that any such action is universally closed, and in particular proper. We derive various applications, both old and new, including closedness of continuous homomor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc21a65e0220e3331b548f7f657cdd48
https://doi.org/10.4171/ggd/420
https://doi.org/10.4171/ggd/420
Autor:
Uri Bader, Vladimir Finkelshtein
We consider a finitely generated group endowed with a word metric. The group acts on itself by isometries, which induces an action on its horofunction boundary. The conjecture is that nilpotent groups act trivially on their reduced boundary. We will
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::596d87a936193f3fa98530df44b6ea51
http://arxiv.org/abs/1904.11234
http://arxiv.org/abs/1904.11234
Let $\Gamma$ be a lattice in $\mathrm{SO}_0(n, 1)$. We prove that if the associated locally symmetric space contains infinitely many maximal totally geodesic subspaces of dimension at least $2$, then $\Gamma$ is arithmetic. This answers a question of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7f9c72beb879c9d0f7cf7db9357782d
http://arxiv.org/abs/1903.08467
http://arxiv.org/abs/1903.08467
Autor:
Uri Bader, Jan Dymara
Publikováno v:
Journal of Modern Dynamics. 10:413-437
We study the unitary boundary representation of a strongly transitive group acting on a right-angled hyperbolic building. We show its irreducibility. We do so by associating to such a representation a representation of a certain Hecke algebra, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::850f227bd17f46b11898be30d63a0a42
https://doi.org/10.3934/jmd.2016.10.413
https://doi.org/10.3934/jmd.2016.10.413
Autor:
Alex Furman, Uri Bader
We prove a super-rigidity result for algebraic representations over complete fields of irreducible lattices in product of groups and lattices with dense commensurator groups. We derive some criteria for non-linearity of such groups.
Comment: arX
Comment: arX
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c459d61417c3ae9993b040ab9261e25
Publikováno v:
Duke Math. J. 169, no. 2 (2020), 213-278
We introduce a class of countable groups by some abstract group-theoretic conditions. It includes linear groups with finite amenable radical and finitely generated residually finite groups with some non-vanishing $\ell^2$-Betti numbers that are not v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d5d71c816652c0a05bb1ad173d22e3b
http://arxiv.org/abs/1711.08410
http://arxiv.org/abs/1711.08410