Theoretical Statistics and Mathematics Unit, ISI Delhi

March 4, 2015 (Wednesday) ,
3:30 PM at Webinar

Speaker:
K. B. Sinha,
JNCASR, Bengaluru

Title:
Helton-Howe and Krein Trace Formulas

Abstract of Talk

Krein's formula gives an expression for the trace of the difference of a function of a self-adjoint operator and its perturbation by the addition of a trace-class operator , while that due to Helton and Howe deals with the trace of the commutator of functions of a hyponormal operator and its adjoint . The impact of Krein's theorem on the derivation of the Helton-Howe formula will be discussed .