Título inglés | Extreme cases of weak type interpolation. |
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Título español | Casos extremos de interpolación de tipo débil. |
Autor/es | Pustylnik, Evgeniy |
Organización | Dep. Math. Technion Israel Inst. Technol., Haifa, Israel |
Revista | 0213-2230 |
Publicación | 2005, 21 (2): 557-576, 11 Ref. |
Tipo de documento | articulo |
Idioma | Inglés |
Resumen inglés | We consider quasilinear operators T of joint weak type (a, b; p, q) (in the sense of [2]) and study their properties on spaces Lφ,E with the norm ||φ(t) f*(t)||Ê, where Ê is arbitrary rearrangement-invariant space with respect to the measure dt/t. A space Lφ,E is said to be "close" to one of the endpoints of interpolation if the corresponding Boyd index of this space is equal to 1/a or to 1/p. For all possible kinds of such "closeness", we give sharp estimates for the function ψ(t) so as to obtain that every T: Lφ,E → Lψ,E. |
Clasificación UNESCO | 120200 |
Palabras clave español | Espacios de funciones medibles ; Interpolación ; Operadores lineales |
Código MathReviews | MR2174916 |
Código Z-Math | Zbl 1092.46016 |
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