Extremal Solutions of the Two-dimensional L-problem of Moments, Ii

@inproceedings{Putinar1998ExtremalSO,
  title={Extremal Solutions of the Two-dimensional L-problem of Moments, Ii},
  author={Mihai Putinar},
  year={1998}
}
All extremal solutions of the truncated L-problem of moments in two real variables , with support contained in a given compact set, are described as characteristic functions of semi-algebraic sets given by a single polynomial inequality. An exponential kernel, arising as the determinantal function of a naturally associated hyponormal operator with rank-one self-commutator, provides a natural defining function for these semi-algebraic sets. We find an intrinsic characterization of this kernel… CONTINUE READING
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