The ζ(21) Apéry Generalization: Cubic Pisot Units, G₂ Geometry, and a Conjectured 4-Term Recurrence
| Paper: 265 | Portfolio E — Grand Challenges |
Abstract
Conjectures a 4-term recurrence for ζ(21) analogous to Apéry’s recurrence for ζ(3), motivated by cubic Pisot unit geometry and the G₂ weight lattice.