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math.PR2026
Stability of extremal hyperplane projections of balls in
Jacek Jakimiuk
We prove stability estimates for the volume of central hyperplane projections of unit balls in , establishing the dual counterpart of the result of Chasapis,…
math.PR2026
Khinchin inequalities for uniforms on spheres with a deficit
Jacek Jakimiuk, Colin Tang, Tomasz Tkocz
We sharpen the moment comparison inequalities with sharp constants for sums of random vectors uniform on Euclidean spheres, providing a deficit term (optimal in high dimensions).
math.PR2025
Stability of Khintchine inequalities with optimal constants between the second and the -th moment for
Jacek Jakimiuk
We give a strengthening of the classical Khintchine inequality between the second and the -th moment for with optimal constant by adding a deficit depending on the vec…