Published Paper
Inserted: 13 sep 2021
Last Updated: 31 may 2022
Journal: Adv. Calc. Var.
Year: 2022
Doi: 10.1515/acv-2021-0078
Abstract:
We prove that on an arbitrary metric measure space a countable collection of test plans is sufficient to recover all $\rm BV$ functions and their total variation measures. In the setting of non-branching ${\sf CD}(K,N)$ spaces (with finite reference measure), we can additionally require these test plans to be concentrated on geodesics.