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SUMMARY:Gregory Smith (Queen's University)
DTSTART:20210416T200000Z
DTEND:20210416T210000Z
DTSTAMP:20260422T173526Z
UID:VCUcolloq/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/VCUcolloq/4/
 ">Sums of Squares: a real projective story</a>\nby Gregory Smith (Queen's 
 University) as part of VCU Mathematics and Applied Mathematics Colloquium 
 Series\n\n\nAbstract\nA multivariate real polynomial is nonnegative if its
  value at any real point is greater than or equal to zero.  These special 
 polynomials play a central role in many branches of mathematics including 
 algebraic geometry\, optimization theory\, and dynamical systems.  However
 \, deciding whether a given polynomial is nonnegative is a hard problem.  
 In this talk\, we will review some general methods for certifying that a p
 olynomial is nonnegative.  We will then present optimal certificates in so
 me important cases. This talk is based on joint work with Grigoriy Blekher
 man\, Rainer Sinn\, and Mauricio Velasco.\n
LOCATION:https://researchseminars.org/talk/VCUcolloq/4/
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