Does anyone have a nice geometric example of function in $H^1(U)$ which is not continuous, where $U \subset R^2$ and has a smooth boundary. I want something that is easy to remember.
2026-04-11 19:50:29.1775937029
Example of function in $H^1(U)$ which is not continuous, where $U \subset R^2$ has a smooth boundary.
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