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Remarks on converse Carleman and Krein criteria for the classical moment problem
- Part of
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- Journal:
- Journal of the Australian Mathematical Society / Volume 71 / Issue 1 / August 2001
- Published online by Cambridge University Press:
- 09 April 2009, pp. 81-104
- Print publication:
- August 2001
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- Article
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The key theme is converse forms of criteria for deciding determinateness in the classical moment problem. A method of proof due to Koosis is streamlined and generalized giving a convexity condition under which moments
satisfying 
implies that 
c a positive constant. A contrapositive version is proved under a rapid variation condition on f (x), generalizing a result of Lin. These results are used to obtain converses of the Stieltjes versions of the Carleman and Krein criteria. Hamburger versions are obtained which relax the symmetry assumption of Koosis and Lin, respectively. A sufficient condition for Stieltjes determinateness of a discrete law is given in terms of its mass function. These criteria are illustrated through several examples.
satisfying 
implies that 
