3 papers
math.GT2024
L^2-Betti numbers of branched covers of hyperbolic manifolds
Grigori Avramidi, Boris Okun, Kevin Schreve
We show that Gromov-Thurston branched covers satisfy the Singer conjecture whenever the degree of the cover is not divisible by a finite set of primes determined by the base manifo…
math.GR2024
Products of free groups inside graph braid groups
Kasia Jankiewicz, Kevin Schreve
Given a graph and a number , the associated graph braid group is the fundamental group of the unordered configuration space of points on . Świątkows…
math.GR2024
The algebraic structure of hyperbolic graph braid groups
B. Appiah, P. Dani, W. Ge +8
Genevois recently classified which graph braid groups on strands are word hyperbolic. In the -strand case, he asked whether all such word hyperbolic groups are actually…