Neumann Series Expansion of the Inverse of a Frame Operator
Commun. Korean Math. Soc. 1998 Vol. 13, No. 4, 791-800
Jae Kun Lim
Korea Advanced Institute of Science and Technology
Abstract : We present a proof that, among all complex numbers, Duffin-Schaeffer's choice in the Neumann series expansion of the inverse of a frame operator has the best possible convergence rate.
Keywords : frame expansion, Neumann series
MSC numbers : 42C15
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