Zobrazeno 1 - 10
of 1 572
pro vyhledávání: '"[MATH.MATH-GR] Mathematics [math]/Group Theory [math.GR]"'
Autor:
Bruno Duchesne
Publikováno v:
HAL
We consider the isometry group of the infinite dimensional separable hyperbolic space with its Polish topology. This topology is given by the pointwise convergence. For non-locally compact Polish groups, some striking phenomena like automatic continu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ddeb63c343d96db81c03238002cc1e0
https://doi.org/10.4171/ggd/713
https://doi.org/10.4171/ggd/713
Autor:
Rodolfo Aguilar
Publikováno v:
Épijournal de Géométrie Algébrique, Vol Volume 5 (2021)
We provide a description of the fundamental group of the quotient of a product of topological spaces X i, each admitting a universal cover, by a finite group G, provided that there is only a finite number of path-connected components in X g i for eve
Externí odkaz:
https://doaj.org/article/edb865c4039a4355893ce1c21a900d00
Autor:
Sikorav, Jean-Claude
Publikováno v:
Annales de l'Institut Fourier. 73:279-306
We prove that for "most" closed 3-dimensional manifolds $M$, the existence of a closed non singular one-form in a given cohomology class $u\in H^1 (M,\bf R)$ is equivalent to the fact that every twisted Alexander polynomial $\Delta^H(M,u) \in {\bf Z}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27dd9b6abb77ca0b3e2e4baa5090cf97
https://doi.org/10.5802/aif.3531
https://doi.org/10.5802/aif.3531
Autor:
Nicolás, Francisco, Py, Pierre
Publikováno v:
Annales de la Faculté des Sciences de Toulouse. Mathématiques.
Annales de la Faculté des Sciences de Toulouse. Mathématiques., Université Paul Sabatier _ Cellule Mathdoc In press
Annales de la Faculté des Sciences de Toulouse. Mathématiques., Université Paul Sabatier _ Cellule Mathdoc In press
We study irrational pencils with isolated critical points on compact aspherical complex manifolds. We prove that if the set of critical points is nonempty, the homology of the kernel of the morphism induced by the pencil on fundamental groups is not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::570ed702843be97b156e80991db1c4e5
https://doi.org/10.5802/afst.1727
https://doi.org/10.5802/afst.1727
Publikováno v:
Journal of Symbolic Computation
Journal of Symbolic Computation, 2023, ⟨10.1016/j.jsc.2022.08.014⟩
Journal of Symbolic Computation, 2023, ⟨10.1016/j.jsc.2022.08.014⟩
International audience; An interpolation problem is defined by a set of linear forms on the (multivariate) polynomial ring and values to be achieved by an interpolant. For Lagrange interpolation the linear forms consist of evaluations at some nodes,w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80ec7f28314e29a3e529eebbcd8b7067
https://doi.org/10.1016/j.jsc.2022.08.014
https://doi.org/10.1016/j.jsc.2022.08.014
Autor:
de La Salle, Mikael
Publikováno v:
Comptes Rendus. Mathématique. 360:549-560
We show that a partition of the unity (or POVM) on a Hilbert space that is almost orthogonal is close to an orthogonal POVM in the same von Neumann algebra. This generalizes to infinite dimension previous results in matrix algebras by Kempe-Vidick an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3892b982dfdcd1f6c83d305a457a7612
https://doi.org/10.5802/crmath.326
https://doi.org/10.5802/crmath.326
Autor:
Jean Fromentin
Publikováno v:
Journal of Algebra. 607:232-259
We introduce an algorithmic framework to investigate spherical and geodesic growth series of braid groups relatively to the Artin's or Birman–Ko–Lee's generators. We present our experimentations in the case of three and four strands and conjectur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::527360c5dc2f11d48689b4830d7c115a
https://doi.org/10.1016/j.jalgebra.2021.04.040
https://doi.org/10.1016/j.jalgebra.2021.04.040
Publikováno v:
Journal of topology
Journal of topology, Oxford University Press, 2018, 11 (283-308), ⟨10.1112/topo.12052⟩
Journal of topology, Oxford University Press, 2018, 11 (283-308), ⟨10.1112/topo.12052⟩
We show that a hyperbolic $3$-manifold can be the cyclic branched cover of at most fifteen knots in $\mathbf{S}^3$. This is a consequence of a general result about finite groups of orientation preserving diffeomorphisms acting on $3$-manifolds. A sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d17eac2b66b891ac1250d8ceea1d2511
https://hal.science/hal-01160794
https://hal.science/hal-01160794
Publikováno v:
2017-57. 53 pages, 3 figures. 2017
Annales Scientifiques de l'École Normale Supérieure
Annales Scientifiques de l'École Normale Supérieure, 2022, 55 (5), pp.1379-1431. ⟨10.24033/asens.2519⟩
Annales Scientifiques de l'École Normale Supérieure
Annales Scientifiques de l'École Normale Supérieure, 2022, 55 (5), pp.1379-1431. ⟨10.24033/asens.2519⟩
We prove that $Out(F_N)$ is boundary amenable. This also holds more generally for $Out(G)$, where $G$ is either a toral relatively hyperbolic group or a finitely generated right-angled Artin group. As a consequence, all these groups satisfy the Novik
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62b2260719966f3f34f6d7ef85fd806d
https://doi.org/10.24033/asens.2519
https://doi.org/10.24033/asens.2519
Autor:
Bergner, Hannah, Zimmermann, Susanna
Publikováno v:
Bulletin of the London Mathematical Society.
Consider a Cremona group endowed with the Euclidean topology introduced by Blanc and Furter. It makes it a Hausdorff topological group that is not locally compact nor metrisable. We show that any sequence of elements of the Cremona group of bounded o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8371a84d1308ba4b779ee6ae77c351b5
https://doi.org/10.1112/blms.12821
https://doi.org/10.1112/blms.12821