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BEGIN:VEVENT
UID:www.tcs.tifr.res.in/event/681
DTSTAMP:20230914T125934Z
SUMMARY:Forster's Lower Bound
DESCRIPTION:Speaker: Nikhil S Mande\n\nAbstract: \nWe will talk about the n
 otion of the sign-rank of a {-1\, 1}-valued matrix\, which measures the ro
 bustness of it's rank under sign preserving changes.  We will first see a
  neat geometric interpretation of the sign-rank\, and then see how showing
  an upper bound on the spectral norm of A implies a lower bound on its sig
 n-rank\, and also see implications in lower bounds on communication comple
 xity and circuit complexity in certain models.\n\nReferences:\nJurgen Fors
 ter. A Linear Lower Bound on the Unbounded Error Probabilistic Communicati
 on Complexity\, 2001\nSatyanarayana V. Lokam: Complexity Bounds using Line
 ar Algebra\n
URL:https://www.tcs.tifr.res.in/web/events/681
DTSTART;TZID=Asia/Kolkata:20160506T160000
DTEND;TZID=Asia/Kolkata:20160506T170000
LOCATION:A-201 (STCS Seminar Room)
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