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Results tagged with fa.functional-analysis
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user 171439
Banach spaces, function spaces, real functions, integral transforms, theory of distributions, measure theory.
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A periodic integral inequality
(This problem comes in connection with a geometric problem exposed here.)
Let $\gamma(x,y)$ be a (real) function on the unit disk such that
$$
\frac{\partial^2\gamma}{\partial x \, \partial y} = 0\:\: …
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