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Displaying similar documents to “On strictly cyclic operator algebras.”

Sobre los operadores desplazamiento ponderados sub-acotados.

Lucas Jódar (1984)

Stochastica

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We study the relation between the sets of cyclic vectors of an unilateral bounded below weighted shift operator T and T where S is an invariant subspace of T. It is proved that T can not be unicellular and known results are generalized.

Sobre los operadores desplazamiento bilateral ponderados e invertibles.

Lucas Jódar (1983)

Stochastica

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In this paper the analytic-spectral structure of the commutant of an invertible bilateral weighted shift operator is studied, extending known results. A class of operators is introduced, more general than the class of the rationally strictly cyclic bilateral shift [operators] which are not unicellular.

Sobre la ecuación cuadrática en operadores A + BT +TC + TDT = 0.

Vicente Hernández, Lucas Jódar (1983)

Stochastica

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By means of the application of annihilating entire functions of an operator, the bilateral quadratic equation in operators A + BT +TC + TDT = 0, is changed into an unilateral linear equation, obtaining conditions under which the solutions of such linear equation satisfy the quadratic equation.