Copositive Matrices: A Survey
 
 
Description:  A real n-by-n matrix A is said to be copositive if x^TAx >= 0 whenever x is an entry-wise nonnegative vector. Despite the simple definition, the class is both important and very subtle to analyze. We will survey the simple properties of copositive matrices, then some of the history and more subtle properties and then mention some recent work and questions of interest.
Area(s):
Date:  2007-01-23
Start Time:   14:45
Speaker:  Charles R. Johnson (College of William and Mary, Williamsburg,USA)
Place:  2.5
Research Groups: -Algebra and Combinatorics
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