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A generalized flat extension theorem for moment matrices

Laurent,M.
; 
Mourrain,B.
Abstract
In this note we prove a generalization of the flat extension theorem of Curto and Fialkow [4] for truncated moment matrices. It applies to moment matrices indexed by an arbitrary set of monomials and its border, assuming that this set is connected to 1. When formulated in a basis-free setting, this gives an equivalent result for truncated Hankel operators.
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2009
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Tilburg University Research Output Collection
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Laurent, M & Mourrain, B 2009, 'A generalized flat extension theorem for moment matrices', Archiv der Mathematik, vol. 93, no. 1, pp. 87-98.
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https://hdl.handle.net/20.500.14602/52266
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info:eu-repo/semantics/restrictedAccess
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