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Approximating Positive Polynomials Using Sums of Squares

  Published:2003-09-01
 Printed: Sep 2003
  • M. Marshall
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Abstract

The paper considers the relationship between positive polynomials, sums of squares and the multi-dimensional moment problem in the general context of basic closed semi-algebraic sets in real $n$-space. The emphasis is on the non-compact case and on quadratic module representations as opposed to quadratic preordering presentations. The paper clarifies the relationship between known results on the algebraic side and on the functional-analytic side and extends these results in a variety of ways.
MSC Classifications: 14P10, 44A60 show english descriptions Semialgebraic sets and related spaces
Moment problems
14P10 - Semialgebraic sets and related spaces
44A60 - Moment problems
 

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