My question is simple: how is the space of $C^k$ functions defined for any $k\in\mathbb R$
Asked
Active
Viewed 52 times
1
-
$k$ times continuously differentiable functions – infinity Feb 25 '20 at 18:36
-
http://mathworld.wolfram.com/C-kFunction.html – Matcha Latte Feb 25 '20 at 18:37
-
@infinity: Note that the the question says any real $k$, not necessarily a nonnegative integer. – Hans Lundmark Feb 25 '20 at 19:49
-
For $k\in\mathbb{R}_{>0}$ see https://math.stackexchange.com/q/3324620/169085 (with $k=q+\alpha$). – Alp Uzman May 16 '22 at 03:10