Journal of Operator Theory

Volume 23, Issue 1, Winter 1990 pp. 51-66.

On the existence of invariant subspaces for some contractions with spectrum dominating an arc on the unit circle

Authors: Andrei Halanay
Author institution: Department of Mathematics 1, Polytechnic Institute, Splaiul IndependenÅ£ei 313, 79590 Bucharest, Romania.

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