LMI representations of convex semialgebraic sets and determinantal representations of algebraic hypersurfaces: past, present, and future Academic Article uri icon


  • 10 years ago or so Bill Helton introduced me to some mathematical problems arising from semidefinite programming. This paper is a partial account of what was and what is happening with one of these problems, including many open questions and some new results.

publication date

  • January 1, 2012