中文

一类广泛调制空间上的范数估计及Fourier型算子的连续性

泛函分析 2025-01-03 v3

摘要

B\mathscr B是关于r0(0,1]r_0 \in (0,1]的拟Banach函数空间,v0v_0ω\omegavv-缓增的,且r[r0,]r\in [r_0,\infty ]。我们证明ff属于调制空间M(ω,B)M(\omega ,\mathscr B )当且仅当VϕfV_\phi f属于Wiener合并空间Wr(ω,B)W ^r(\omega ,\mathscr B ),并且fM(ω,B)VϕfωBVϕfWr(ω,B). \| f \|_{M(\omega , \mathscr B)} \asymp \| V _\phi f \, \omega \| _{\mathscr B} \asymp \| V _\phi f \|_{W ^r(\omega ,\mathscr B)}. 我们还利用这些结果推导了具有加权M,r0M^{\infty,r_0}(其中r01r_0 \le 1)符号的伪微分算子的连续性,当它们作用于M(ω,B)M(\omega ,\mathscr B )-空间时。

关键词

引用

@article{arxiv.2407.10503,
  title  = {Norm estimates for a broad class of modulation spaces, and continuity of Fourier type operators},
  author = {Joachim Toft and Christine Pfeuffer and Nenad Teofanov},
  journal= {arXiv preprint arXiv:2407.10503},
  year   = {2025}
}

备注

Title for 1st version: "On a broad family of quasi-Banach modulation spaces" This is the third version, which is extended with lifting properties for modulation spaces, and with convolution properties. It now has 63 p. (39 p. in 2nd version)