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> Operator Algebras Seminar (Samir Raouafi)

Operator Algebra Seminars
Fri., Oct. 14, 2016 10:00 a.m. - Fri., Oct. 14, 2016 12:00 p.m.
Location: RIC 215
Speaker: Samir Raouafi
Title: Numerical Range and Mapping Theorems, I
Abstract:
The numerical range of an operator $A$ is a remarkable region of the complex plane. It captures information about the spectrum and the behavior of $A$. In this first lecture, we will review the basic properties of the numerical range and discuss some results about its convexity and the geometry of its boundary.