One-sided invertibility of binomial functional operators with a shift on rearrangement-invariant spaces |
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Authors: | Alexei Yu Karlovich Yuri I Karlovich |
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Institution: | (1) Departamento de Matemática, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;(2) Departamento de Matemáticas, CINVESTAV del I.P.N., Apartado Postal 14-740, 07000 Mexico, D.F., Mexico |
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Abstract: | Let be an oriented Jordan smooth curve and a diffeomorphism of onto itself which has an arbitrary nonempty set of periodic points. We prove criteria for one-sided invertibility of the binomial functional operator wherea andb are continuous functions,I is the identity operator,W is the shift operator,Wf=fo , on a reflexive rearrangement-invariant spaceX( ) with Boyd indices
X
,
X
and Zippin indicesp
x,q
x satisfying inequalities
Partially supported by F.C.T. (Portugal) grant PRAXIS XXI/BPD/22006/99.Partially supported by CONCACYT (México) grant, Cátedra Patrimonial, No. 990017-EX., nivel II. |
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Keywords: | |
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