BEN GURION UNIVERSITY OF THE NEGEV
            DEPARTMENT OF MATHEMATICS
 
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       Operator and System Theory Seminar
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SPEAKER: Daniel Markiewicz , BGU
 
TITLE:   Recent developments in the classification of semigroups of endormophisms of B(H)
 
DATE:    Monday, December 5, 2011
 
PLACE:   Room -101, Mathematics Building, BGU
 
TIME:	 14:10
 
ABSTRACT:
 
This will be a survey talk in spirit, and I will not assume much more than
familiarity with the algebra B(H) of bounded operators on a separable
Hilbert space H. I will give an overview of the classification problem
of semigroups of endomorphisms of B(H), and then I will present recent
developments obtained in joint work with Christopher Jankowski and
Robert T. Powers. Specifically, I will talk about the recent computation
of the gauge group invariant in some examples and the discovery of
an abundance of prime semigroups, i.e., semigroups which cannot be decomposed
into non-trivial tensor products.
 
For further announcements see
 <http://www.math.bgu.ac.il/~vinnikov/otseminar>
 
For further information please contact:
 
Daniel Alpay   <dany@math.bgu.ac.il> , phone: 08-6461603
Victor Vinnikov   <vinnikov@math.bgu.ac.il> , phone: 08-6461618
 
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Technion Math Net-2 (TECHMATH2)
Editor: Michael Cwikel   <techm@math.technion.ac.il> 
Announcement from: Victor Vinnikov   <vinnikov@cs.bgu.ac.il>