Embeddings of concave functions and duals of Lorentz spaces
- Autores: Gord Sinnamon
- Localización: Publicacions matematiques, ISSN 0214-1493, Vol. 46, Nº 2, 2002, págs. 489-515
- Idioma: inglés
- DOI: 10.5565/publmat_46202_10
- Títulos paralelos:
- Inmersiones de funciones cóncavas y duales de espacios de Lorentz
- Enlaces
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Resumen
A simple expression is presented that is equivalent to the norm of the $L^p_v\to L^q_u$ embedding of the cone of quasi-concave functions in the case $0 < q < p < \infty$. The result is extended to more general cones and the case $q=1$ is used to prove a reduction principle which shows that questions of boundedness of operators on these cones may be reduced to the boundedness of related operators on whole spaces. An equivalent norm for the dual of the Lorentz space
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