×

On the method of least squares of finding eigenvalues and eigenfunctions of some symmetric operators. II. (English) Zbl 0211.16402


MSC:

47A10 Spectrum, resolvent
41A50 Best approximation, Chebyshev systems
47A70 (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces
47A58 Linear operator approximation theory
47B25 Linear symmetric and selfadjoint operators (unbounded)

Citations:

Zbl 0211.16501
PDFBibTeX XMLCite
Full Text: EuDML