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The invariant subspace lattice of an algebraic operator.

Orovchanec, Marija, Nachevska, Biljana (2002)

Matematichki Vesnik

The Positive Supercyclicity Theorem.

F. León Saavedra (2004)

Extracta Mathematicae

We present some recent results related with supercyclic operators, also some of its consequences. We will finalize with new related questions.

The relationship between $K_{u}^{2} \cap v H^{2}$ and inner functions

Xiaoyuan Yang (2024)

Czechoslovak Mathematical Journal

Let $u$ be an inner function and $K_{u}^{2}$ be the corresponding model space. For an inner function $v$ , the subspace $v H^{2}$ is an invariant subspace of the unilateral shift operator on $H^{2}$ . In this article, using the structure of a Toeplitz kernel $\ker T_{\bar{u} v}$ , we study the intersection $K_{u}^{2} \cap v H^{2}$ by properties of inner functions $u$ and $v$ $(v ...$

Translation invariant subspaces of weighted l... and L... spaces.

Yngve Domar (1981)

Mathematica Scandinavica

Triangularization of some families of operators on locally convex spaces

Edvard Kramar (2001)

Commentationes Mathematicae Universitatis Carolinae

Some results concerning triangularization of some operators on locally convex spaces are established.