Jiecheng Zhang

activity

20162026

most citedAnomalous Thermal Diffusivity in Underdoped YBa

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97 citations · 173 across the 8 of their papers we have counts for

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math.PR2026

Threshold Rules for the Classical Prophet Inequality

Jiechen Zhang

This note records a common threshold/surplus decomposition for single-threshold stopping rules in the classical prophet inequality. The same decomposition is used to certify severa…

math.PR2025

Explicit Universal Bounds for Cumulants via Moments

Jiechen Zhang

We establish explicit, universal, and distribution-free bounds for the $n$ -th cumulant, $κ_{n} (X)$ , of a scalar random variable, controlled solely by an $n$ -th order absolute moment…