About some linear operators.
Pop, Ovidiu T. (2007)
International Journal of Mathematics and Mathematical Sciences
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Pop, Ovidiu T. (2007)
International Journal of Mathematics and Mathematical Sciences
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Căbulea, Lucia A., Todea, Mihaela (2002)
Acta Universitatis Apulensis. Mathematics - Informatics
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Căbulea, Lucia A., Todea, Mihaela (2002)
Acta Universitatis Apulensis. Mathematics - Informatics
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Beatriz Margolis (1972)
Annales Polonici Mathematici
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Galakhov, E. (1997)
Memoirs on Differential Equations and Mathematical Physics
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Ryotaro Sato (1976)
Colloquium Mathematicae
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Ryotaro Sato (1976)
Colloquium Mathematicae
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Vijay Gupta, G. S. Srivastava (1996)
Annales Polonici Mathematici
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We define a new kind of Durrmeyer-type summation-integral operators and study a global direct theorem for these operators in terms of the Ditzian-Totik modulus of smoothness.
Miroslav Sova (1982)
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Luis Bernal-González (2007)
Studia Mathematica
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We introduce the concept of disjoint hypercyclic operators. These are operators performing the approximation of any given vectors with a common subsequence of iterates applied on a common vector. The notion is extended to sequences of operators, and applied to composition operators and differential operators on spaces of analytic functions.