activity
20232026
most citedHarmonic analysis of Mandelbrot cascades -- in the context of vector-valued martingales

2 citations · 2 across the 6 of their papers we have counts for

collaborators

6 papers

math.FA2026

The optimal hypercontractive constants for and biased Bernoulli random variables

Jie Cao, Shilei Fan, Yong Han +2

We resolve a folklore problem of determining the optimal hypercontractive constants for the cyclic group for all . More p…

math.PR2025

Microcanonical cascades and random homeomorphisms

Xinxin Chen, Yong Han, Yanqi Qiu +1

We give a complete solution to the Mandelbrot-Kahane problem for the microcanonical cascade measures by determing their exact Fourier dimensions. We also discuss the Frostman regul…

math.PR2024★ 2 cited

Harmonic analysis of Mandelbrot cascades -- in the context of vector-valued martingales

Xinxin Chen, Yong Han, Yanqi Qiu +1

We solve a long-standing open problem of determining the Fourier dimension of the Mandelbrot canonical cascade measure (MCCM). This problem of significant interest was raised by Ma…

cs.LG2024

UCB Exploration for Fixed-Budget Bayesian Best Arm Identification

Rong J. B. Zhu, Yanqi Qiu

We study best-arm identification (BAI) in the fixed-budget setting. Adaptive allocations based on upper confidence bounds (UCBs), such as UCBE, are known to work well in BAI. Howev…

math.FA2024

Self-absorption of Hankel systems on monoids --a seemingly universal property

Yong Han, Yanqi Qiu, Zipeng Wang

Given any cancellative monoid , we study the Hankel system determined by its multiplication table. We prove that the Hankel system admits self-absorption property prov…

math.PR2023

Moments of Mandelbrot cascades at critical exponents

Yong Han, Yanqi Qiu, Zipeng Wang

We obtain the asymptotic growth rate of the moments of the Mandelbrot random cascades at critical exponents. The key ingredient is a to reduction method for the moment-es…