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20022026
most citedGW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral

9.8k citations

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math.GR2023

Cubulating Drilled bundles over graphs

Mahan Mj, Biswajit Nag

We start with a Gromov-hyperbolic surface bundle over a graph, and drill out essential simple closed curves from fibers to obtain a drilled bundle . We prove that for such d…

math.GR2022

Class number for pseudo-Anosovs

François Dahmani, Mahan Mj

Given two automorphisms of a group , one is interested in knowing whether they are conjugate in the automorphism group of , or in the abstract commensurator of , and how t…

math.GR2022

Limit sets of unfolding paths in Outer space

Mladen Bestvina, Radhika Gupta, Jing Tao

We construct an unfolding path in Outer space which does not converge in the boundary, and instead it accumulates on the entire 1-simplex of projectivized length measures on a non-…

math.GR2017★ 1 cited

The congruence topology, Grothendieck duality and thin groups

Alexander Lubotzky, T. N. Venkataramana

This paper answers a question raised by Grothendieck in 1970 on the "Grothendieck closure" of an integral linear group and proves a conjecture of the first author made in 1980. Thi…

math.GR2012

On the exactness of Kostant-Kirillov form and the second cohomology of nilpotent orbits

Indranil Biswas, Pralay Chatterjee

We give a criterion for the Kostant-Kirillov form on an adjoint orbit in a real semisimple Lie group to be exact. We explicitly compute the second cohomology of all the nilpotent a…

math.GR2011

Two generalizations of the nonabelian tensor product

Manuel Ladra, Viji Z. Thomas

The purpose of this paper is two fold. First we introduce the box-tensor product of two groups as a generalization of the nonabelian tensor product of groups. We extend various res…