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arXiv math/0701114math.CA
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广义$k$平面变换的精确$L^p$ - $L^q$估计

Sharp $L^p$-$L^q$ estimates for generalized $k$-plane transforms

Philip T. Gressman

摘要:

本文推广了$k$ -平面变换,得到了多项式子流形上平均函数的算子的最优$L^p-L^q$估计.一个重要的进步,以前的工作是,充分的$L^p-L^q$估计传统上只产生有限的弱型估计的方法。在这个过程中,我们得到了对$p < 1$的$L^p$上的某些泛函的连续性估计.

英文摘要:

In this paper, optimal $L^p-L^q$ estimates are obtained for operators which average functions over polynomial submanifolds, generalizing the $k$-plane transform. An important advance over previous work is that full $L^p-L^q$ estimates are obtained by methods which have traditionally yielded only restricted weak-type estimates. In the process, one is lead to make coercivity estimates for certain functionals on $L^p$ for $p < 1$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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