Journal of Operator Theory
Volume 7, Issue 1, Winter 1982 pp. 173-178.
Geometrical means of eigenvaluesAuthors: Endre Makai, Jr. (1) and Jaroslav Zemanek (2)
Author institution: (1) Mathematical Institute, Hungarian Academy of Sciences, 1053 Budapest, Reáltanoda u. 13-15, Hungary.
(2) Institute of Mathematics, Polish Academy of Sciences, 00-950 Warszawa, P.O. Box 137, Poland.
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