scholarly journals Weak commutativity and finiteness properties of groups

2018 ◽  
Vol 51 (1) ◽  
pp. 168-180 ◽  
Author(s):  
Martin R. Bridson ◽  
Dessislava H. Kochloukova
2015 ◽  
Vol 65 (2) ◽  
Author(s):  
M. R. Darnel ◽  
W. C. Holland ◽  
H. Pajoohesh

AbstractIn this paper we explore generalizations of Neumann’s theorem proving that weak commutativity in ordered groups actually implies the group is abelian. We show that a natural generalization of Neumann’s weak commutativity holds for certain Scrimger ℓ-groups.


1948 ◽  
Vol 15 (4) ◽  
pp. 1021-1032 ◽  
Author(s):  
Reinhold Baer

2018 ◽  
Vol 69 (3) ◽  
pp. 835-854 ◽  
Author(s):  
Dessislava H Kochloukova ◽  
Francismar Ferreira Lima

2020 ◽  
Vol 156 (4) ◽  
pp. 822-861
Author(s):  
Jeremy Miller ◽  
Rohit Nagpal ◽  
Peter Patzt

We prove a representation stability result for the codimension-one cohomology of the level-three congruence subgroup of $\mathbf{SL}_{n}(\mathbb{Z})$. This is a special case of a question of Church, Farb, and Putman which we make more precise. Our methods involve proving finiteness properties of the Steinberg module for the group $\mathbf{SL}_{n}(K)$ for $K$ a field. This also lets us give a new proof of Ash, Putman, and Sam’s homological vanishing theorem for the Steinberg module. We also prove an integral refinement of Church and Putman’s homological vanishing theorem for the Steinberg module for the group $\mathbf{SL}_{n}(\mathbb{Z})$.


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