2025/10/15 by Luis Crespo, Crespo, Luis, Álvaro Pelayo +1
Mathematics · #37P05 #53D20 #Advanced Algebra and Geometry #Algebraic Geometry and Number Theory #FOS: Mathematics #FOS: Physical sciences #Mathematical Physics (math-ph) #Symplectic Geometry (math.SG) #advanced mathematical theories
paper · pdf · doi:10.48550/arxiv.2510.13415
openalex publication_date 2025/10/15 · openalex created_date 2025/10/17 · openalex updated_date 2026/07/28
The coupled angular momentum is an integrable system with two degrees of freedom which is fundamental in physics and the theory of integrable systems. It is obtained by coupling two angular momenta. We construct a p-adic analog of this system for any prime number p and describe its symplectic normal forms at the critical points. This analog has a rich singularity theory with up to thirteen non-equivalent symplectic normal forms, which stands in contrast with the real case where there are exactly three normal forms.