Date
Tue, 03 May 2022
Time
14:30 - 15:00
Location
L3
Speaker
Henrik Eisenmann
Organisation
Max Planck Institute in Leipzig

We investigate the maximum distance of a rank-two tensor to rank-one tensors. An equivalent problem is given by the minimal ratio of spectral and Frobenius norm of a tensor. For matrices the distance of a rank k matrix to a rank r matrices is determined by its singular values, but since there is a lack of a fitting analog of the singular value decomposition for tensors, this question is more difficult in the regime of tensors.
 

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