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27. Apr 2023

On the operator norm of tensors matrices involving Haar unitaries

Mathphys Analysis Seminar

Datum: 27. April 2023 | 16:15 – 17:15
Sprecher: Benoit Collins, Kyoto University
Veranstaltungsort: Heinzel Seminar Room (I21.EG.101), Office Building West, ISTA
Sprache: Englisch

I will introduce the problem of studying the operator norm of random matrices built from polynomial operations involving multiple iid Haar unitary random matrices or random permutation matrices. I will explain its relevance in free probability and other areas, known results, known limitations in the context of random tensors, and recent results in the case of tensors. Time allowing, I will describe the techniques involved (operator-valued non-backtracking theory). This is in part joint work with Charles Bordenave, and in particular, based on the recent preprint arXiv/2304.05714

Weitere Informationen:

Datum:
27. April 2023
16:15 – 17:15

Sprecher:
Benoit Collins, Kyoto University

Veranstaltungsort:
Heinzel Seminar Room (I21.EG.101), Office Building West, ISTA

Sprache:
Englisch

Ansprechpartner:

Birgit Oosthuizen-Noczil

Email:
birgit.oosthuizen-noczil@ist.ac.at

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