The author preprint, supplement, and reproduction code for Physical Gradient Recovery and Stopping Guarantees for a Folded Stokes Parametrization are now available on GitHub.
The study and public materials
At the fold of a physicality-preserving Stokes parametrization, first derivatives leave one physical-gradient component undetermined. A recovery formula restores this component from one signed radial second derivative.
Under assumptions including a strongly convex physical objective, the paper derives finite-tolerance stopping guarantees. The release includes a 14-page paper, a 22-page supplement, and reproduction code for recovery formulas, interval stopping tests, and polarization-fitting experiments.
Paper and release details
- Paper
- Physical Gradient Recovery and Stopping Guarantees for a Folded Stokes Parametrization
- Authors
- Hiroyasu Usami, Ayato Tsuboi, Keisuke Hara
- Public version
- Author preprint v1.0.1 (GitHub early release)
- Release date
- October 22, 2026