Journal of Operator Theory
Volume 17, Issue 1, Winter 1987 pp. 99-119.
A characterization of spectral functions of definitizable operatorsAuthors: Aurelian Gheondea (1) and Peter Jonas (2)
Author institution: (1) Department of Mathematics, INCREST, Bdul PÄcii 220, 79622 Bucharest, Romania.
(2) Karl-Weierstrass-Institut für Mathematik, Akademie der Wissenschaften der DDR, Mohrenstrasse 39, Berlin 1080, D.D.R.
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