Mathematics Colloquium

Thursday, January 18, 1996, 4:00pm

102 Bradley Hall

Professor Neal Fowler

University of Newcastle, Australia

speaks on

States of Toeplitz-Cuntz algebras

Abstract. Motivated by work of W. Arveson on the spectral C*-algebra of an E_0-semigroup, we discuss how locally normal weights on a certain irreducible operator algebra can be used to study states of Toeplitz-Cuntz algebras. As an application, we classify those states of the Cuntz algebra O_{\infty} whose restriction to the fixed point algebra under the action of the gauge group is a pure product state.

Tea. High tea will be served at 3:30pm in the Lounge.
Emmy's. Certain refreshments will be available at the Emmy's after the talk.
Host. Dana Williams will be the host, anybody interested in having dinner with the speaker should contact Dana (Ext. 6-2990).