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Results tagged with fa.functional-analysis
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user 101828
Banach spaces, function spaces, real functions, integral transforms, theory of distributions, measure theory.
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votes
Bounding the norm of the Laplacian of the gradient of a function having Lipschitz continuous...
The claim is false. The counter example is the function
$f(x) = \varphi(\|x\|_2)$ with an increasing and infinitely differentiable
function $\varphi:[0,\infty)\to\mathbb R$ satisfying
$$
\varphi(t) = …
- 9