KMID : 0380319870400000007
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Journal of Korean Research Institute for Better Living 1987 Volume.40 No. 0 p.7 ~ p.12
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A Weighted Norm Inequality for a Maximal Function with Respect to a One Parameter Monotonic Family of Intervals
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Kim Kyung-Hwa
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Abstract
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Let F be a one parameter monotonic family of intervals I_t 0£¼t£¼¡Ä, with center 0 & G={J} be such that G={I+x£üI¡ôF, x¡ôR^n} & define
Mf(x)=sup_x¡ôJ¡ôG 1/£üJ£ü¡ò_J£üf(x)£üdy
In this paper, we show the equivalence of the following, for p>1 and w¡ô^1_loc(R^n):
(1) ¡ò_Rn£ÛMf(y)£Ý^pw(y)dy¡ÂC¡ò_Rn£üf(y)£ü^pw(y)dy, ¢£f
(2) sup_J¡ôG£Û1/£üJ£ü¡ò_J w(y)dy£Ý£Û1/£üJ£ü¡ò_J w(y)^(-1/p-1)dy£Ý^p-1<¡Ä
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KEYWORD
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