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Related papers: On homology torsion growth

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Using integral methods we recover and generalize some results by F\'{e}lix, Halperin and Thomas on the growth of the rational homology groups of free loop spaces, and obtain a new family of spaces whose $p$-torsion in homotopy groups grows…

Algebraic Topology · Mathematics 2025-04-30 Ruizhi Huang , Stephen Theriault

We study the growth of the order of torsion subgroups of the homology in a tower of finite abelian coverings. In particular, we prove that it is exponential for when the tower converges to the maximal free abelian cover of a link complement…

Geometric Topology · Mathematics 2014-10-01 Jean Raimbault

We prove an analogue of the L\"uck Approximation Theorem in positive characteristic for certain residually finite rationally soluble (RFRS) groups including right-angled Artin groups and Bestvina--Brady groups. Specifically, we prove that…

Group Theory · Mathematics 2025-01-15 Sam P. Fisher , Sam Hughes , Ian J. Leary

We extend the refined asymptotics of analytic torsion associated to congruence subgroups of $\operatorname{SL}(n)$ in previous work, to congruence subgroups in a large family of reductive groups. This is applied to give new asymptotics and…

Number Theory · Mathematics 2026-04-27 Tim Berland

Let G be a semisimple Lie group with associated symmetric space D, and let Gamma subset G be a cocompact arithmetic group. Let L be a lattice inside a Z Gamma-module arising from a rational finite-dimensional complex representation of G.…

Number Theory · Mathematics 2016-08-23 Avner Ash , Paul E. Gunnells , Mark McConnell , Dan Yasaki

Numerical data concerning the growth of torsion in the first homology of non-arithmetic hyperbolic tetrahedral groups are collected. The data provide support the speculations of Bergeron and Venkatesh on the growth of torsion homology and…

Number Theory · Mathematics 2013-10-08 Mehmet Haluk Sengun

We study the asymptotic growth of homology groups and the cellular volume of classifying spaces as one passes to normal subgroups $G_n<G$ of increasing finite index in a fixed finitely generated group $G$, assuming $\bigcap_n G_n =1$. We…

Group Theory · Mathematics 2016-04-14 Martin R Bridson , Dessislava H. Kochloukova

We show how locally smooth actions of compact Lie groups on a manifold $X$ can be used to obtain new upper bounds for the topological complexity $\TC(X)$, in the sense of Farber. We also obtain new bounds for the topological complexity of…

Algebraic Topology · Mathematics 2011-09-27 Mark Grant

In this paper we consider certain families of arithmetic subgroups of SO^0(p,q) and SL_3(R), respectively. We study the cohomology of such arithmetic groups with coefficients in arithmetically defined modules. We show that for natural…

Number Theory · Mathematics 2013-02-05 Werner Mueller , Jonathan Pfaff

Pattern classes which avoid 321 and other patterns are shown to have the same growth rates as similar (but strictly larger) classes obtained by adding articulation points to any or all of the other patterns. The method of proof is to show…

Combinatorics · Mathematics 2009-10-09 M. H. Albert , M. D. Atkinson , R. Brignall , N. Ruskuc , Rebecca Smith , J. West

We prove that torsion in the abelianizations of open normal subgroups in finitely presented pro-$p$ groups can grow arbitrarily fast. By way of contrast in $\mathbb Z_p$- analytic groups the torsion growth is at most polynomial.

Group Theory · Mathematics 2021-06-29 Nikolay Nikolov

In this note, we construct a family of hyperbolic manifolds with exponentially growing torsion in their homology groups. This demonstrates that the recent bound on homological torsion, established by Bader, Gelander, and Sauer, is…

Geometric Topology · Mathematics 2025-12-10 Stepan Alexandrov

It is observed that the conjugacy growth series of the infinite finitary symmetric group with respect to the generating set of transpositions is the generating series of the partition function. Other conjugacy growth series are computed,…

Combinatorics · Mathematics 2016-03-18 Roland Bacher

When does the amount of torsion in the homology of an arithmetic group grow exponentially with the covolume? We give many examples where this is so, and conjecture precise conditions.

Number Theory · Mathematics 2010-04-08 Nicolas Bergeron , Akshay Venkatesh

We derive a priori bounds on the size of the structure constants of the free Lie algebra over a set of indeterminates, relative to its Hall bases. We investigate their asymptotic growth, especially as a function of the length of the…

Combinatorics · Mathematics 2022-09-23 Karine Beauchard , Jérémy Le Borgne , Frédéric Marbach

We employ partitioning methods, in the spirit of Montiel--Ros but here recast for general actions of compact Lie groups, to prove effective lower bounds on the Morse index of certain families of closed minimal hypersurfaces in the round…

Differential Geometry · Mathematics 2024-11-19 Alessandro Carlotto , Mario B. Schulz , David Wiygul

We prove several cases of Zimmer's conjecture for actions of higher-rank cocompact lattices on low dimensional manifolds. For example, if $\Gamma$ is a cocompact lattice in $\mathrm{Sl}(n, \mathbb R)$, $M$ is a compact manifold, and…

Dynamical Systems · Mathematics 2020-07-14 Aaron Brown , David Fisher , Sebastian Hurtado

On an odd-dimensional oriented hyperbolic manifold of finite volume with strongly acyclic coefficient systems, we derive a formula relating analytic torsion with the Reidemeister torsion of the Borel-Serre compactification of the manifold.…

Differential Geometry · Mathematics 2019-03-18 Werner Mueller , Frédéric Rochon

We give an upper bound for the growth of homology torsions of finite coverings of irreducible 3-manifolds with tori boundary in terms of hyperbolic volume.

Geometric Topology · Mathematics 2017-07-17 Thang Le

In this paper we prove that for a fixed neat principal congruence subgroup of a Bianchi group the order of the torsion part of its second cohomology group with coefficients in an integral lattice associated to the m-th symmetric power of…

Number Theory · Mathematics 2015-05-07 Jonathan Pfaff , Jean Raimbault