New posts in Weak Derivatives

Must continuous $H^1(\mathbb{R}^2)$ function tend to zero at infinity?

What is the motivation of defining weak derivative as it is?

evil derivative

Weak derivative of a given function

Gradient of Sobolev function on level sets

Why is it useful to show the existence and uniqueness of solution for a PDE?

Does existence of the second weak derivative of $f\in L^2$ imply existence of the first?