Distributional stability for Khintchine inequalities
Distributional stability for Khintchine inequalities
Let be a standard Gaussian random variable, let be independent identically distributed symmetric random variables with
and let satisfy the normalization intended in the conjecture. Distributional stability conjecture. For , when the variables are sufficiently close in some sense to the Rademacher distribution, one expects, possibly under additional assumptions, that either
or
holds. The formulation is explicitly tentative: the meaning of closeness and the coefficient assumptions are not specified, and the authors describe the question as largely open.
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Sources & referencesView supporting material
Primary source
Jacek Jakimiuk, “Stability of Khintchine inequalities with optimal constants between the second and the p-th moment for p 3”, arXiv:2503.07001 (2025).
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