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Banach spaces, function spaces, real functions, integral transforms, theory of distributions, measure theory.

1 vote

$\lVert u\rVert_{W^{2,p}}$ is bounded above by $\lVert \Delta_p u\rVert_{L^2}$ for $u \in W^...

You could take a look at Chapter 3 of P. Lindqvist's notes: http://www.math.ntnu.no/~lqvist/p-laplace.pdf Since you work in a bounded domain there is also the matter of boundary regularity. Even for …
Thanasis Stylianou's user avatar
1 vote

Can you pair $H^s(\Omega)$ and $H^{-s}(\Omega)$ on a domain $\Omega$?

You could, by extension, if your domain has a boundary that is at least Lipschitz, but the analysis could become quite tricky. Take a look at Gerd Grubb's book: Functional Calculus of Pseudodifferenti …
Thanasis Stylianou's user avatar