3 papers
math.MG2025
1-Uryson width and covers
Hannah Alpert, Arka Banerjee, Panos Papasoglu
We investigate the following question: Do there exist Riemannian polyhedra such that the 1-Uryson width of their universal covers is bounded but…
math.GR2025
Cyclic orders and actions of Leary--Minasyan groups on coarse spaces
Arka Banerjee, Kevin Schreve
We show that for , there are torsion-free CAT(0) groups with visual boundaries that embed into but which are not virtually the fundamental group of a compact aspher…
stat.CO2025
Efficient Multivariate Initial Sequence Estimators for MCMC
Arka Banerjee, Dootika Vats
Estimating Monte Carlo error is critical to valid simulation results in Markov chain Monte Carlo (MCMC) and initial sequence estimators were one of the first methods introduced for…