Weighted inequalities for one-sided maximal functions

Weighted inequalities for one-sided maximal functions
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DOI:
10.1090/s0002-9947-1990-0986694-9
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发表时间:
1990-02
影响因子:
1.3
通讯作者:
F. J. MARTlN-REYES;P. Ortega;DE A.;LA Torre
F. J. MARTlN-REYES;P. Ortega;DE A.;LA Torre
中科院分区:
数学1区
文献类型:
--
作者:
F. J. MARTlN-REYES;P. Ortega;DE A.;LA Torre

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设M+是由g MB f(x) = sup (f (t)lg(t) dt) (f+g(t) dt)定义的极大算子,其中g是r上的一个正的局部可积函数。我们刻画了在LP(u)或弱LP(u)中MB+应用LP(v)的非负函数(u, v)对。我们的结果推广了Sawyer的(g = 1),但我们的证明是不同的,我们没有使用Hardy的不等式,这使得不等式的证明是自含的。
Let M+ be the maximal operator defined by g MB f(x) = sup ( f(t)lg(t) dt) (f+g(t) dt) where g is a positive locally integrable function on R. We characterize the pairs of nonnegative functions (u, v) for which MB+ applies LP(v) in LP(u) or in weakLp(u) . Our results generalize Sawyer's (case g = 1 ) but our proofs are different and we do not use Hardy's inequalities, which makes the proofs of the inequalities self-contained.