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Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)

 
 

 

Weak convergence of measures and weak type $(1,q)$ of maximal convolution operators


Authors: Filippo Chiarenza and Alfonso Villani
Journal: Proc. Amer. Math. Soc. 97 (1986), 609-615
MSC: Primary 42B20; Secondary 28A33
DOI: https://doi.org/10.1090/S0002-9939-1986-0845974-2
MathSciNet review: 845974
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Abstract: Let ${G^ * }$ be the maximal convolution operator associated with a sequence of ${L^1}$ kernels. We show that if ${G^ * }$ is of weak type $(1,q)$, $1 \leq q < \infty$, over a subset ${\mathcal N}$ of ${\mathcal M}$ (the space of all finite positive Borel measures on ${{\bf {R}}^h}$ endowed with the weak topology), then ${G^ * }$ is of weak type $(1,q)$ over the closed cone in ${\mathcal M}$ generated by ${\mathcal N}$. As a particular case we obtain a well-known result by de Guzman.


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Article copyright: © Copyright 1986 American Mathematical Society