Unless specified, all seminars are Wednesday 4-5pm at 250 Math Building.

September 10th

Semicrossed products by abelian semigroups

semicrossed product. I will discuss two issues: whether one recover the dynamics from the semicrossed productt, and what is the C*-envelope of the semicrossed product.

October 29th

On the membership of Hankel operators in a class of Lorentz ideals

November 5th

Polynomially bounded cohomology and applications

function on a finitely generated group, the cohomology is said to be polynomially bounded cohomology. It can very often happen that this cohomology theory is

canonically isomorphic to the regular group cohomology theory. A group is said to be isocohomological if the polynomially bounded cohomology theory is canonically

isomorphic to the group cohomology theory. We examine the class of groups satisfying this isocohomologicality condition and many applications of the latter.

November 12th

Symmetric norming functions and Symmetrically normed ideals

talk, the concept of a symmetrically-normed ideal and the related concept of a symmetric norming function will be defined. Some useful properties and theorems, such as

Fan's Theorem, will be presented. We will also see some examples besides the Schatten p-classes. After this, the motivation for studying symmetrically-normed ideals

will be presented.

Past Analysis Seminars