6 papers
Levi-Civita connections for conformally deformed metrics on tame differential calculi
Jyotishman Bhowmick, Debashish Goswami, Soumalya Joardar
Given a tame differential calculus over a noncommutative algebra and an -bilinear pseudo-Riemannian metric consider the conformal deformation $ g…
Improved bound on the non zero eigenvalues of the graph Laplacian coming from quantum symmetry of vertex transitive graphs
Soumalya Joardar
A chain of quantum subgroups of the quantum automorphism group of finite graphs has been introduced. It generalizes the construction of J. Bichon (see [3]) in a sense. A better bou…
Scalar Curvature of a Levi-Civita Connection on Cuntz algebra with three generators
Soumalya Joardar
A differential calculus on Cuntz algebra with three generators coming from the action of rotation group in three dimensions is introduced. The differential calculus is shown to sat…
A note on the injectivity of action by compact quantum groups on a class of -algebras
D Goswami, S Joardar
We give some sufficient conditions for the injectivity of actions of compact quantum groups on -algebra. As an application, we prove that any faithful smooth action by a…
Quantum symmetry of graph C*-algebras at critical inverse temperature
Arnab Mandal, Soumalya Joardar
We give a notion of quantum automorphism group of graph C*-algebras without sink at critical inverse temperature. This is defined to be the universal object of a category of CQG's…
An averaging trick for smooth actions of compact quantum groups on manifolds
Debashish Goswami, Soumalya Joardar
We prove that, given any smooth action of a compact quantum group (in the sense of \cite{rigidity}) on a compact smooth manifold satisfying some more natural conditions, one can ge…