collaborators

6 papers

math.SG2026

-adic symplectic geometry of integrable systems and Weierstrass-Williamson theory II

Luis Crespo, Álvaro Pelayo

This paper is a sequel to arXiv:2501.14444, in which we shall give proofs of several results stated in arXiv:2501.14444 (Theorems D--L) which, for brevity and clarity, we postponed…

math.SG2025

Group actions on -adic symplectic manifolds

Luis Crespo, Álvaro Pelayo

Let be a prime number. We introduce symplectic actions of -adic analytic Lie groups on -adic symplectic manifolds. Then we show that any -adic symplectic action $G\tim…

math.SG2025

-adic angular momentum coupling in symplectic geometry

Luis Crespo, Álvaro Pelayo

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 tw…

math.SG2025

Darboux's Theorem in -adic symplectic geometry

Luis Crespo, Álvaro Pelayo

We prove a non Archimedean Darboux's Theorem: any two symplectic forms on a -adic analytic manifold are locally isomorphic. Understanding local problems such as the existence of…

math.SG2025

Rigidity and flexibility in -adic symplectic geometry

Luis Crespo, Álvaro Pelayo

Let be an integer and let be a prime number. We prove that the analog of Gromov's non-squeezing theorem does not hold for -adic embeddings: for any -adic absolut…

math.SG2025

-adic symplectic geometry of integrable systems and Weierstrass-Williamson theory I

Luis Crespo, Álvaro Pelayo

The local symplectic theory of integrable systems is fundamental to understand their global theory, as well as the behavior near singularities of fundamental models from classical…