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SUMMARY:Erik Christensen (University of Copenhagen)
DTSTART:20240214T200000Z
DTEND:20240214T210000Z
DTSTAMP:20260420T052726Z
UID:NYC-NCG/152
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NYC-NCG/152/
 ">From spectral triples in NCG to Grothendieck's inequalities in the theor
 y of finite rank matrices</a>\nby Erik Christensen (University of Copenhag
 en) as part of Noncommutative geometry in NYC\n\n\nAbstract\nWhile studyin
 g properties of a spectral triple\, I realized that the Schur product - or
  entry wise product of infinite matrices   -- has a nice Stinespring repre
 sentation as a completely bounded bilinear operator. On the other hand it 
 is well known that Grothendieck's inequality on bilinear forms has a dual 
 counterpart\, which describes certain properties of Schur multipliers. It 
 turned out that the theory of operator spaces and completely bounded multi
 linear maps form a nice background to present some classical and some new 
 results on both the Schur product and on Grothendieck's inequalities. Part
  of this will be extended to the non commutative Grothendieck inequality t
 oo.\n
LOCATION:https://researchseminars.org/talk/NYC-NCG/152/
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