collaborators

6 papers

math-ph2026

Hamilton--Jacobi theory for non-conservative field theories in the -contact framework

Javier de Lucas, Julia Lange, Xavier Rivas +1

This article develops a Hamilton--Jacobi theory for non-conservative classical field theories, with particular emphasis on dissipative systems, in the framework of co-oriented k-co…

math.DG2026

Brackets in multicontact geometry and multisymplectization

Manuel de León, Rubén Izquierdo-López, Xavier Rivas

In this paper we introduce a graded bracket of forms on multicontact manifolds. This bracket satisfies a graded Jacobi identity as well as two different versions of the Leibniz rul…

math.DG2025

-contact Lie systems: theory and applications

Javier de Lucas, Xavier Rivas, Tomasz Sobczak

This paper introduces a new class of Lie systems that are Hamiltonian relative to a -contact manifold. We show that a recent distributional approach to -contact manifolds alo…

math.PR2025

Hamiltonian stochastic Lie systems and applications

E. Fernández-Saiz, J. de Lucas, X. Rivas +1

This paper provides a practical approach to stochastic Lie systems, i.e. stochastic differential equations whose general solutions can be written as a function depending only on a…

math.DG2025

Marsden--Meyer--Weinstein reduction for -contact field theories

J. de Lucas, X. Rivas, S. Vilarino +1

This work devises a Marsden--Meyer--Weinstein -contact reduction. Our techniques are illustrated with several examples of mathematical and physical relevance. As a byproduct, we…

math.DG2025

Foundations on k-contact geometry

Javier de Lucas, Xavier Rivas, Tomasz Sobczak

k-Contact geometry is a generalisation of contact geometry to analyse field theories. We develop an approach to k-contact geometry based on distributions that are distributionally…