Spectral theory for infinitesimal generators of one-parameter groups of isometries the minimax principle and compact perturbations

Jorgensen, P. E. T

Spectral theory for infinitesimal generators of one-parameter groups of isometries the minimax principle and compact perturbations Palle E. T. Jorgensen - Aarhus Universitet Aarhus 1980/81 - 48 p 20 cm - Preprint series 40 .

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