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arXiv 2402.09054math.APmath.FA
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具有复相位函数的傅里叶积分算子的弱(1,1)有界性

The weak (1,1) boundedness of Fourier integral operators with complex phases

Ghent University(根特大学);Queen Mary University of London(伦敦大学玛丽女王学院)

Duván Cardona, Michael Ruzhansky

AI总结:

本文研究了具有复相位函数的傅里叶积分算子的弱(1,1)有界性,证明了其在复值设定下的有界性,无法从实值情况下的结果推导得出。

摘要:

令T为一个阶为-(n-1)/2的傅里叶积分算子,其局部参数化由一个实相位函数给出。Seeger、Sogge和Stein在90年代证明了一个基本结果,表明T从Hardy空间H^1到L^1是有界的。此外,Tao证明了T的弱(1,1)类型。在本工作中,我们证明了当关联的canonical关系由复相位函数参数化时,阶为-(n-1)/2的傅里叶积分算子T的弱(1,1)有界性。在复值设定下,这一结果无法从其在实值情况下的对应结果中推导出来。

英文摘要:

Let $T$ be a Fourier integral operator of order $-(n-1)/2$ associated with a canonical relation locally parametrised by a real-phase function. A fundamental result due to Seeger, Sogge, and Stein proved in the 90's, gives the boundedness of $T$ from the Hardy space $H^1$ into $L^1.$ Additionally, it was shown by T. Tao the weak (1,1) type of $T$. In this work, we establish the weak (1,1) boundedness of a Fourier integral operator $T$ of order $-(n-1)/2$ when it has associated a canonical relation parametrised by a complex phase function. This result in the complex-valued setting, cannot be derived from its counterpart in the real-valued case.

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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