Mathematics Colloquium: Johnson Abstract, Spring 2004

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Mathematics Colloquium, Spring 2004

William B. Johnson
Texas A & M University

Weakly null sequences in L₁

We construct a weakly null normalized sequence in L₁ which has no unconditionally basic subsequence; in fact, the Haar system can be reproduced as a block basis of any subsequence. This solves a problem raised in the 1977 paper of B. Maurey and H. P. Rosenthal. Hosts: Denka Kutzarova and Zhong-Jin Ruan

Tuesday, May 11, 2004, 245 Altgeld Hall, 11:30 a.m. - 12:30 p.m.

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