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20022015
most citedImproved Cosmological Constraints from New, Old and Combined Supernova Datasets

1.6k citations

Showing 2010 · math.GRShow all

6 papers · 2 filters

math.GR20103 cited

Approximating the first -betti number of residually finite groups

W. Lück, D. Osin

We show that the first -betti number of a finitely generated residually finite group can be estimated from below by using ordinary first betti numbers of finite index normal s…

math.GR2010

Universal tree-graded spaces and asymptotic cones

Denis Osin, Mark Sapir

We define and give explicit construction of the universal tree-graded space with a given collection of pieces. We apply that to proving uniqueness of asymptotic cones of relatively…

math.GR2010

Distortion in Free Nilpotent Groups

Tara Davis

We prove that a subgroup of a finitely generated free nilpotent group F is undistorted if and only if it is a retract of a subgroup of finite index in F.

math.GR2010

Subgroup Distortion in Wreath Products of Cyclic Groups

Tara Davis, Alexander Olshanskii

We study the effects of subgroup distortion in the wreath products A wr Z, where A is finitely generated abelian. We show that every finitely generated subgroup of A wr Z has disto…

math.GR2010

Conjugacy Growth in Polycyclic Groups

M. Hull

In this paper, we consider the conjugacy growth function of a group, which counts the number of conjugacy classes which intersect a ball of radius centered at the identity. We…

math.GR20102 cited

A Note on Element Centralizers in Finite Coxeter Groups

Matjaž Konvalinka, Götz Pfeiffer, Claas Röver

The normalizer of a standard parabolic subgroup of a finite Coxeter group splits over the parabolic subgroup with complement consisting of certain minima…