On differential operators with integral conditions.
Galakhov, E. (1997)
Memoirs on Differential Equations and Mathematical Physics
Similarity:
The search session has expired. Please query the service again.
The search session has expired. Please query the service again.
The search session has expired. Please query the service again.
The search session has expired. Please query the service again.
Displaying similar documents to “On operators close to isometries”
On differential operators with integral conditions.
Operators on continuous function spaces and L1-spaces
Ryotaro Sato (1976)
Colloquium Mathematicae
Similarity:
Operators on some function spaces
Ryotaro Sato (1976)
Colloquium Mathematicae
Similarity:
Attractive operators and fixed points
Beatriz Margolis (1972)
Annales Polonici Mathematici
Similarity:
Generalizations of Kaplansky's Theorem Involving Unbounded Linear Operators
Abdelkader Benali, Mohammed Hichem Mortad (2014)
Bulletin of the Polish Academy of Sciences. Mathematics
Similarity:
We are mainly concerned with the result of Kaplansky on the composition of two normal operators in the case in which at least one of the operators is unbounded.
Generalizations of Mercer's theorem for a class of nonselfadjoint operators
M. R. Dostanić (1989)
Matematički Vesnik
Similarity:
M - Paranormal Operators
S.C. Arora, Ramesh Kumar (1981)
Publications de l'Institut Mathématique
Similarity:
Admissible initial operators for superpositions of right invertible operators
D. Przeworska-Rolewicz (1977)
Annales Polonici Mathematici
Similarity:
On λ-commuting operators
John B. Conway, Gabriel Prǎjiturǎ (2005)
Studia Mathematica
Similarity:
For a scalar λ, two operators T and S are said to λ-commute if TS = λST. In this note we explore the pervasiveness of the operators that λ-commute with a compact operator by characterizing the closure and the interior of the set of operators with this property.
A note on composition operators
S. Petrović (1988)
Matematički Vesnik
Similarity:
On (A,m)-expansive operators
Sungeun Jung, Yoenha Kim, Eungil Ko, Ji Eun Lee (2012)
Studia Mathematica
Similarity:
We give several conditions for (A,m)-expansive operators to have the single-valued extension property. We also provide some spectral properties of such operators. Moreover, we prove that the A-covariance of any (A,2)-expansive operator T ∈ ℒ(ℋ ) is positive, showing that there exists a reducing subspace ℳ on which T is (A,2)-isometric. In addition, we verify that Weyl's theorem holds for an operator T ∈ ℒ(ℋ ) provided that T is (T*T,2)-expansive. We next study (A,m)-isometric operators...
Backward extensions of hyperexpansive operators
Zenon J. Jabłoński, Il Bong Jung, Jan Stochel (2006)
Studia Mathematica
Similarity:
The concept of k-step full backward extension for subnormal operators is adapted to the context of completely hyperexpansive operators. The question of existence of k-step full backward extension is solved within this class of operators with the help of an operator version of the Levy-Khinchin formula. Some new phenomena in comparison with subnormal operators are found and related classes of operators are discussed as well.
Interchangeability of unbounded linear operators: General theory of transmutativity
Miroslav Sova (1982)
Časopis pro pěstování matematiky
Similarity:
The series of Mikusinski operators of the special form.
B. Stankovic, D. Nikolic-Despotovic (1972)
Publications de l'Institut Mathématique [Elektronische Ressource]
Similarity:
Backward Aluthge iterates of a hyponormal operator and scalar extensions
C. Benhida, E. H. Zerouali (2009)
Studia Mathematica
Similarity:
Let R and S be two operators on a Hilbert space. We discuss the link between the subscalarity of RS and SR. As an application, we show that backward Aluthge iterates of hyponormal operators and p-quasihyponormal operators are subscalar.