# Edition history

## September–October 2026

The AN-03 course-writing task prepared the independently written *Elliptic Operators & Boundary Problems* lessons in OpenAI Codex. GPT-6 Astra (OpenAI), Ultra, selected the exact supporting sections and prepared the additional AN-01 arguments and navigation in October 2026.

Each component identifies its source lesson, retained section numbers, mathematical scope and additions. The selected statements, proofs and human-source credits remain part of the reading. The independently written programme text carries [CC0 1.0 Universal](https://creativecommons.org/publicdomain/zero/1.0/), to the extent rights are held. Cited works and separately identified components retain their own rights.