T. Kanda

collaborators

2 papers

math.OA2021

Note on bi-exactness for creation operators on Fock spaces

Kei Hasegawa, Yusuke Isono, Tomohiro Kanda

In this note, we introduce and study a notion of bi-exactness for creation operators acting on full, symmetric and anti-symmetric Fock spaces. This is a generalization of our previ…

math.DS2020

Boundary and rigidity of nonsingular Bernoulli actions

Kei Hasegawa, Yusuke Isono, Tomohiro Kanda

Let $G$ be a countable discrete group and consider a nonsingular Bernoulli shift action $G ↷ \prod_{g \in G} ({0, 1}, μ_{g})$ with two base points. When $G$ is exa…