Theoretical Statistics and Mathematics Unit, ISI Delhi

October 23, 2019 (Wednesday) ,
3:30 PM at Webinar

Speaker:
Keshab Bakshi,
CMI, Chennai

Title:
A quadruple of $II_1$ factors.

Abstract of Talk

Given a quadruple (N,P,Q,M) of $II_1$ factors with finite Jones index a new notion of angle between
P and Q were introduced in [An Angle between intermediate subfactors and its rigidity, Trans. Amer. Math. Soc. 371(8) (2019)] to understand the relative position between the intermediate subfactors. We determine the possible values of this angle when $N\subset P$ and $N\subset Q$ both are so-called 'regular'
subfactors. In particular, we obtain a generalization of a result of T. Sano and Y. Watatani. This talk is based on a joint work with Prof. Ved Prakash Gupta.