On differential operators with integral conditions.
Galakhov, E. (1997)
Memoirs on Differential Equations and Mathematical Physics
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Displaying similar documents to “Admissible initial operators for superpositions of right invertible operators”
On differential operators with integral conditions.
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Ryotaro Sato (1976)
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Generalizations of Kaplansky's Theorem Involving Unbounded Linear Operators
Abdelkader Benali, Mohammed Hichem Mortad (2014)
Bulletin of the Polish Academy of Sciences. Mathematics
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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.
The series of Mikusinski operators of the special form.
B. Stankovic, D. Nikolic-Despotovic (1972)
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Interchangeability of unbounded linear operators: General theory of transmutativity
Miroslav Sova (1982)
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On λ-commuting operators
John B. Conway, Gabriel Prǎjiturǎ (2005)
Studia Mathematica
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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.
On quasinormal operators
K. Chandrasekhara Rao (1979)
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Generalizations of Mercer's theorem for a class of nonselfadjoint operators
M. R. Dostanić (1989)
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Jaroslav Zemánek (2007)
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The Closure In The Space Of Mikusinski's Operators
M. Budimčević, B. Stanković (1971)
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Polaroid type operators and compact perturbations
Chun Guang Li, Ting Ting Zhou (2014)
Studia Mathematica
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A bounded linear operator T acting on a Hilbert space is said to be polaroid if each isolated point in the spectrum is a pole of the resolvent of T. There are several generalizations of the polaroid property. We investigate compact perturbations of polaroid type operators. We prove that, given an operator T and ε > 0, there exists a compact operator K with ||K|| < ε such that T + K is polaroid. Moreover, we characterize those operators for which a certain polaroid type property...