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TZID:Europe/Vienna
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DTSTART:20230326T030000
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BEGIN:VEVENT
DTSTAMP:20260404T133140Z
UID:1682604900@ist.ac.at
DTSTART:20230427T161500
DTEND:20230427T171500
DESCRIPTION:Speaker: Benoit Collins\nhosted by Laszlo Erdös\nAbstract: I w
 ill introduce the problem of studying the operator norm of random matrices
  built from polynomial operations involving multiple iid Haar unitary rand
 om matrices or random permutation matrices. I will explain its relevance i
 n 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 Bordenav
 e\, and in particular\, based on the recent preprint arXiv/2304.05714
LOCATION:Heinzel Seminar Room (I21.EG.101)\, Office Building West\, ISTA\, 
 ISTA
ORGANIZER:birgit.oosthuizen-noczil@ist.ac.at 
SUMMARY:Benoit Collins: On the operator norm of tensors matrices involving 
 Haar unitaries
URL:https://talks-calendar.ista.ac.at/events/4121
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