Weak-strong uniqueness for the mean curvature flow of double bubbles Hensel, Sebastian ; https://orcid.org/0000-0001-7252-8072 Laux, Tim We derive a weak-strong uniqueness principle for BV solutions to multiphase mean curvature flow of triple line clusters in three dimensions. Our proof is based on the explicit construction of a gradient-flow calibration in the sense of the recent work of Fischer et al. [arXiv:2003.05478] for any such cluster. This extends the two-dimensional construction to the three-dimensional case of surfaces meeting along triple junctions. 2021 info:eu-repo/semantics/preprint doc-type:preprint text http://purl.org/coar/resource_type/c_816b https://research-explorer.ista.ac.at/record/10013 Hensel S, Laux T. Weak-strong uniqueness for the mean curvature flow of double bubbles. <i>arXiv</i>. doi:<a href="https://doi.org/10.48550/arXiv.2108.01733">10.48550/arXiv.2108.01733</a> eng info:eu-repo/semantics/altIdentifier/doi/10.48550/arXiv.2108.01733 info:eu-repo/semantics/altIdentifier/arxiv/2108.01733 info:eu-repo/semantics/openAccess