Continuity conjecture for the minimal loss function under additive perturbations

Let Λ(x)\underline{\Lambda}(x) denote the minimal solution's loss function for the McKean--Vlasov problem with additive perturbation xx, and let MM be the space of loss functions.

Continuity conjecture. The map

xΛ(x)x \mapsto \underline{\Lambda}(x)

is continuous from R\mathbb{R} to MM.

Such stability under additive perturbations of the initial condition would yield propagation of minimality without assuming uniqueness of the physical solution to the McKean--Vlasov problem. The source does not provide a resolution of this conjecture.

Sources & referencesView supporting material

Primary source

Christa Cuchiero, Stefan Rigger and Sara Svaluto-Ferro, “Propagation of minimality in the supercooled Stefan problem”, arXiv:2010.03580 (2022).

Additional references

2 papers in this index state this conjecture (2015–2020). The statement above is taken from the most recent of them; the others are arXiv:1506.02017.

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