A strict Positivstellensatz for the Weyl algebra |
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Authors: | Email author" target="_blank">Konrad?SchmüdgenEmail author |
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Institution: | (1) Fakultät für Mathematik und Informatik, Universität Leipzig, Augustusplatz 10, 04109, Leipzig, Germany |
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Abstract: | Let c be an element of the Weyl algebra which is given by a strictly positive operator in the Schrödinger representation. It is shown that, under some conditions, there exist certain elements b1,...,bd from such that dj=1 bj c b*j is a finite sum of squares.Mathematics Subject Classification (2000): 11 E25, 14 P10, 47 L60, 16 W10 |
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