Yuxuan Xu

Research Notes on ζ(9): Constructions, Computations, and Open Problems

Version 0.1 is a work-in-progress research note on the irrationality of ζ(9), documenting research conducted on 24–25 September 2026. This note does not claim a proof of the irrationality of ζ(9). The record documents nine research rounds, including rational-function construction...