Denote the space of continuously differentiable functions by $C^1(\mathbb{R})$, equipped with the $C^1-$norm. My question is what is the dual space to this Banach space? What about $C^k(\mathbb{R})$ for $k\geq2$?
2026-03-28 13:05:06.1774703106
What is the dual space to $C^1(\mathbb{R})$
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