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arXiv 1901.07237math.CA
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$S_{0,0}$型双线性伪微分算子在$L^2 \times L^2$上的有界性

Boundedness of bilinear pseudo-differential operators of $S_{0,0}$-type on $L^2 \times L^2$

Tomoya Kato, Akihiko Miyachi, Naohito Tomita

摘要:

推广了已知的结果:符号在双线性Hörmander类$BS^{-n/2}_{0,0}(\mathbb{R}^n)$中的双线性伪微分算子从$L^2 \times L^2$到$h^1$是有界的.我们证明了对于每个$1< r \le 2$,这些算子也是从$L^2 \times L^2$到$L^r $有界的.此外,我们给出了类似的结果,符号类宽于$BS^{-n/2}_{0,0}(\mathbb{R}^n)$。我们也给出了有限光滑符号的结果。

英文摘要:

We extend the known result that the bilinear pseudo-differential operators with symbols in the bilinear Hörmander class $BS^{-n/2}_{0,0}(\mathbb{R}^n)$ are bounded from $L^2 \times L^2$ to $h^1$. We show that those operators are also bounded from $L^2 \times L^2$ to $L^r $ for every $1< r \le 2$. Moreover we give similar results for symbol classes wider than $BS^{-n/2}_{0,0}(\mathbb{R}^n)$. We also give results for symbols of limited smoothness.

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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