6 papers
-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…
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…
-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…
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…
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…
-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…