Talk:Fourier integral operator

Example notation

Does ${\mathcal {S}}'(\mathbb {R} ^{n})$ mean the set of all once differentiable functions from $\mathbb {R} ^{n}$ to $\mathbb {R}$? I wasn't sure what this meant, and that's just my guess based on context. It should probably be clarified in the article. DubleH (talk) 01:34, 5 January 2024 (UTC)