Two Sandwich Theorems for Linear Operators and the Moment Problem
نویسنده
چکیده
We give a direct proof for theorem 2 [13] (which is equivalent to theorem 1 [15]). Then we apply theorems 1 [15] and 4 [15] to some concrete spaces of sequences or functions which have a Schauder basis. The polynomials xj(t) = t j , j ∈ N considered in the classical moment problem, are replaced by the elements of the Schauder basis. Mathematics Subject Classification: 46A22, 47A57.
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