The topological two-contact-point conjecture for cheese domains
The topological two-contact-point conjecture for cheese domains
Let be a compact convex subset of with non-empty interior. Let be a convex open set such that
Set . For a bounded function , let and denote the corresponding Bellman functions. The two-contact-point conjecture. There are at least two points such that
This conjecture is motivated by the topology of a convex domain with a convex hole: optimizing martingales should not be able to turn over the inner boundary. The source presents it as the mechanism behind the extension of the main theorem to such domains; no resolution is supplied.
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Sources & referencesView supporting material
Primary source
Dmitriy M. Stolyarov and Pavel B. Zatitskiy, “Theory of locally concave functions and its applications to sharp estimates of integral functionals”, arXiv:1412.5350 (2014).
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