5 papers
Metric dimension of -algebras of cocycle twisted transformation groupoids: Growth and dynamical complexity
Arnab Chattopadhyay, Soumalya Joardar
We consider a natural CQMS structure on a twisted transformation groupoid -algebra coming from stratified Lip-norm introduced by Austad. We obtain upper bou…
Metric dimension and product entropy of group -algebras
Arnab Chattopadhyay, Soumalya Joardar
We consider reduced group -algebras of finitely generated discrete groups metrized by seminorms obtained from word length functions. We study the metric dimensions of suc…
On outer automorphisms of certain graph -algebras
Swarnendu Datta, Debashish Goswami, Soumalya Joardar
Given a countable abelian group , we construct a row finite directed graph such that the -group of the graph -algebra $\textrm{C}^{\ast}(Î(A))…
Metrics on -algebras of Étale groupoids from length functions
Arnab Chattopadhyay, Md Amir Hossain, Soumalya Joardar
We show that for an étale groupoid with compact unit space, the natural Dirac type operator from a continuous length function produces a natural pseudo-metric on the state space of…
Isometric actions of compact quantum groups on graph C*-algebras
Soumalya Joardar, Jitender Sharma
For a strongly connected directed graph , it is shown that the quantum automorphism group of acts isometrically in the sense of D. Goswami et al. on the spectral triple $(…