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)