arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1503.01606math.AP
收藏

Wiener汞齐空间上的复合算子

Composition Operators on Wiener amalgam Spaces

Divyang G. Bhimani

摘要:

对于$\mathbb C$上的复变函数$F$,我们研究了Wiener汞齐$W^{p,q}(\mathbb R^d) \ (1\leq p< \infty, 1\leq q<2).$上的伴随复合算子$T_{F}(f):=F\circ f= F(f)$.我们证明了$T_{F} $将$W^{p, 1}(\mathbb R^d)$映射到$W^{p,q}(\mathbb R^d)$的充要条件是$F$在$\mathbb R^2$和$F(0)=0.$上是实解析的. Anal. 270(2016),第621 -648页)。

英文摘要:

For a complex function $F$ on $\mathbb C$, we study the associated composition operator $T_{F}(f):=F\circ f= F(f)$ on Wiener amalgam $W^{p,q}(\mathbb R^d) \ (1\leq p< \infty, 1\leq q<2).$ We have shown $T_{F} $ maps $W^{p, 1}(\mathbb R^d)$ to $W^{p,q}(\mathbb R^d)$ if and only if $F$ is real analytic on $\mathbb R^2$ and $F(0)=0.$ Similar result is proved in the case of modulation spaces $M^{p,q}(\mathbb R^d).$ In particular, this gives an affirmative answer to the open question proposed by Bhimani-Ratnakumar (J. Funct. Anal. 270 (2016), p.621-648).

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。

↑