FLUCTUATION EXPANSION FOR A UNIVARIATE FUNCTION’S MATRIXREPRESENTATIONMETIN DEMIRALP (pp. 176-193)
The matrix representation of a univariate function operator is considered. A rapidlyconverging scheme is constructed via a fluctuation operator projecting to the complement ofthe space spanned by a finite number of bases. We give only first two terms although theconstruction of whole approximation is possible.
Hilbert spaces, matrix representation, fluctuation expansion, approximate quadra-ture.