# [A smooth three-torus diffeomorphism with simple Lebesgue spectrum](paper.pdf)

**Author:** OpenAI

**Date:** September 23, 2026

## Citation

To cite this manuscript:

```bibtex
@misc{OAI:A-smooth-three-torus-diffeomorphism-with-simple-Lebesgue-spectrum-September-23-2026,
  author = {{OpenAI}},
  title = {{A smooth three-torus diffeomorphism with simple Lebesgue spectrum}},
  howpublished = {OpenAI Math Release preprint
                  \href{https://github.com/openai/math/blob/main/preprints/A-smooth-three-torus-diffeomorphism-with-simple-Lebesgue-spectrum-September-23-2026/paper.pdf}{OAI:A-smooth-three-torus-diffeomorphism-with-simple-Lebesgue-spectrum-September-23-2026}},
  year = {2026}
}
```