An optimal theorem for the spherical maximal operator on the Heisenberg group

An optimal theorem for the spherical maximal operator on the Heisenberg group
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海森堡群上球极大算子的一个最优定理

DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
Sundaram Thangavelu
Sundaram Thangavelu
中科院分区:
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文献类型:
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作者:
E. Narayanan;Sundaram Thangavelu

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AbstractLet $$mathbb{I}^n = mathbb{C}^n imes mathbb{R}$$ 为海森堡群,μr为半径球在n上的归一化表面测度。让 $$Mf = sup _{r > 0} left| {f * mu _r } ight|$$ 。我们证明了球面极大函数mf的最优有界性,即当且仅当p>2n/2n−1时,m仅在lp (In)上有界。
AbstractLet $$mathbb{I}^n = mathbb{C}^n imes mathbb{R}$$ be the Heisenberg group and μr be the normalized surface measure on the sphere of radiusr in ℂn. Let $$Mf = sup _{r > 0} left| {f * mu _r } ight|$$ . We prove an optimalLp-boundedness result for the spherical maximal functionMf, namely we prove thatM is bounded onLp(In) if and only ifp>2n/2n−1.