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Mar
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asked Derivation of the advection equation
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Feb
28
revised Good metric on $C^k(0,1)$ and $C^\infty(0,1)$
added 193 characters in body
Feb
28
revised Good metric on $C^k(0,1)$ and $C^\infty(0,1)$
added 193 characters in body
Feb
28
answered Good metric on $C^k(0,1)$ and $C^\infty(0,1)$
Feb
28
comment Good metric on $C^k(0,1)$ and $C^\infty(0,1)$
It is important to you that the interval your functions live on is open, right? If it would be closed like in $C^k([0,1])$, you could get a norm on this space that even makes it a Banach space. (And every norm induces a metric). That would be a rather good metric on $C^k([0,1])$ in my opinion. I don't know about the $C^{\infty}$-case though...
Feb
27
accepted Is every open, bounded and simply connected subset of $\mathbb{R}^n$ essentially a ball?
Feb
26
asked The simplicity of $\bigwedge^i \mathbb{C}^{n+1}$ as a representation of $\mathfrak{sl_{n+1}}$ and its weight vectors
Feb
19
accepted Do we really need Hahn-Banach that much?
Feb
19
comment Do we really need Hahn-Banach that much?
Okay, thank you! Makes me kind of sad, though... ;)