Zobrazeno 1 - 10
of 7 358
pro vyhledávání: '"Sisto, A"'
Autor:
Wilton, Henry, Sisto, Alessandro
Assuming that every hyperbolic group is residually finite, we prove the congruence subgroup property for mapping class groups of hyperbolic surfaces of finite type. Under the same assumption, it follows that profinitely equivalent hyperbolic 3-manifo
Externí odkaz:
http://arxiv.org/abs/2410.00556
For any geodesic metric space $X$, we give a complete cohomological characterisation of the hyperbolicity of $X$ in terms of vanishing of its second $\ell^{\infty}$-cohomology. We extend this result to the relative setting of $X$ with a collection of
Externí odkaz:
http://arxiv.org/abs/2409.18871
We consider 3-manifolds given as Heegaard splittings $M=H^-\cup_\Sigma H^+$ with the aim to describe the hyperbolic metric of $M$ under topological conditions on the splitting guaranteeing that the manifold is hyperbolic. In particular, given a suita
Externí odkaz:
http://arxiv.org/abs/2408.06998
Autor:
Sisto, Alessandro, Zbinden, Stefanie
We show that the word problem for any 3-manifold group is solvable in time $O(n\log^3 n)$. Our main contribution is the proof that the word problem for admissible graphs of groups, in the sense of Croke and Kleiner, is solvable in $O(n\log n)$; this
Externí odkaz:
http://arxiv.org/abs/2407.18029
Autor:
Groves, Daniel, Haïssinsky, Peter, Manning, Jason F., Osajda, Damian, Sisto, Alessandro, Walsh, Genevieve S.
Given a hyperbolic group $G$ and a maximal infinite cyclic subgroup $\langle g \rangle$, we define a drilling of $G$ along $g$, which is a relatively hyperbolic group pair $(\widehat{G}, P)$. This is inspired by the well-studied procedure of drilling
Externí odkaz:
http://arxiv.org/abs/2406.14667
Autor:
Noguer, Federico R., Corley, Suber, Pearson, Kyle A., Zellem, Robert T., Simon, Molly N., Burt, Jennifer A., Huckabee, Isabela, August, Prune C., Mansfield, Megan Weiner, Dalba, Paul A., Smith, Peter C. B., Banks, Timothy, Bell, Ira, Daniel, Dominique, Dawson, Lindsay, De Mula, Jesús, Deldem, Marc, Deligeorgopoulos, Dimitrios, Di Sisto, Romina P., Dymock, Roger, Evans, Phil, Follero, Giulio, Fowler, Martin J. F., Fernández-Lajús, Eduardo, Hamrick, Alex, Iannascoli, Nicoletta, Kovacs, Andre O., Kulh, Denis Henrique, Lopresti, Claudio, Marino, Antonio, Martin, Bryan E., Matassa, Paolo Arcangelo, Napoleão, Tasso Augusto, Nastasi, Alessandro, Norris, Anthony, Odasso, Alessandro, Paschalis, Nikolaos I., Pintr, Pavel, Postiglione, Jake, Randolph, Justus, Regembal, François, Rousselot, Lionel, da Silva, Sergio José Gonçalves, Smith, Andrew, Tomacelli, Andrea
We present an updated ephemeris and physical parameters for the exoplanet WASP-77 A b. In this effort, we combine 64 ground- and space-based transit observations, 6 space-based eclipse observations, and 32 radial velocity observations to produce the
Externí odkaz:
http://arxiv.org/abs/2405.19615
We show that the Morse boundary exhibits interesting examples of both the existence and non-existence of Cannon-Thurston maps for normal subgroups, in contrast with the hyperbolic case.
Comment: 7 pages
Comment: 7 pages
Externí odkaz:
http://arxiv.org/abs/2405.17572
All poetic forms come from somewhere. Prosodic templates can be copied for generations, altered by individuals, imported from foreign traditions, or fundamentally changed under the pressures of language evolution. Yet these relationships are notoriou
Externí odkaz:
http://arxiv.org/abs/2404.17337
We show that quasi-isometries of (well-behaved) hierarchically hyperbolic groups descend to quasi-isometries of their maximal hyperbolic space. This has two applications, one relating to quasi-isometry invariance of acylindrical hyperbolicity, and th
Externí odkaz:
http://arxiv.org/abs/2309.07013
The combinatorial hierarchical hyperbolicity criterion is a very useful way of constructing new hierarchically hyperbolic spaces (HHSs). We show that, conversely, HHSs satisfying natural assumptions (satisfied, for example, by mapping class groups) a
Externí odkaz:
http://arxiv.org/abs/2308.16335