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Directors:
Randolph E. Bank
Philip E. Gill
Michael Holst

Administrative Contact:
Terry Le

Office: AP&M 7431
Phone: (858)534-9813
Fax: (858)534-5273
E-mail: tele@ucsd.edu
Rank Decomposition of Symmetric Tensor

Xinzhen Zhang
UCSD

Abstract:

In this talk, it is shown that a rank decomposition of symmetric tensors must be its symmetric rank decomposition when the tensor's rank is less than its order. Furthermore, when the rank of symmetric tensors equals the order, the symmetric rank must be the rank. As a corollary, for symmetric tensors, rank and symmetric rank coincide when rank is at most order. This partially gives a positive answer to the Comon's conjecture. Finally, a sufficient condition under which a symmetric decomposition of symmetric tensors is a symmetric rank decomposition is presented. Some examples are presented to show the efficiency of the condition.

Tuesday, December 2, 2014
11:00AM AP&M 2402