Displaying similar documents to “Операторы взвешенного сдвига, спектральная теория линейных расширений и мультипликативная эргодическая теорема”

On the shift operators.

Aggour, M.M. (1996)

International Journal of Mathematics and Mathematical Sciences

Similarity:

Operators with absolute continuity properties: an application to quasinormality

Zenon Jan Jabłoński, Il Bong Jung, Jan Stochel (2013)

Studia Mathematica

Similarity:

An absolute continuity approach to quasinormality which relates the operator in question to the spectral measure of its modulus is developed. Algebraic characterizations of some classes of operators that emerge in this context are found. Various examples and counterexamples illustrating the concepts of the paper are constructed by using weighted shifts on directed trees. Generalizations of these results that cover the case of q-quasinormal operators are established.

On unbounded hyponormal operators III

J. Janas (1994)

Studia Mathematica

Similarity:

The paper deals mostly with spectral properties of unbounded hyponormal operators. Some nontrivial examples of such operators are given.