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Questions on the calculus of variations, which deals with the optimization of functionals mostly defined on infinite dimensional spaces.

5 votes

Mass minimizing current in real homology class

Since $T$ is a closed current, it has a local primitive $u$, which is a function such that for any smooth $n - 1$-form $\varphi$ with support on the set where $u$ is defined, $$\int_T \varphi = \int_M …
Aidan Backus's user avatar
3 votes
Accepted

Is every area-minimizing cone a level set of a least-gradient function?

Yes. Let $L := \mathbf C \cap \partial B_1$ be the link of $\mathbf C$. Since $\mathbf C$ meets $\partial B_1$ transversely and is smooth near $\partial B_1$, $L$ can be viewed as a closed submanifold …
Aidan Backus's user avatar