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A stochastic Lie system on a manifold $M$ is a stochastic differential equation whose dynamics is described by a linear combination with functions depending on $\mathbb{R}^\ell$-valued semi-martigales of vector fields on $M$ spanning a…

Probability · Mathematics 2025-12-02 Javier de Lucas , Marcin Zając

Lie systems form a class of systems of first-order ordinary differential equations whose general solutions can be described in terms of certain finite families of particular solutions and a set of constants, by means of a particular type of…

Mathematical Physics · Physics 2013-03-13 J. F. Cariñena , J. de Lucas

A Lie system is a system of first-order ordinary differential equations describing the integral curves of a $t$-dependent vector field taking values in a finite-dimensional real Lie algebra of vector fields: a so-called Vessiot-Guldberg Lie…

Mathematical Physics · Physics 2015-03-03 J. de Lucas , S. Vilariño

A {\it Lie system} is a nonautonomous system of first-order differential equations admitting a {\it superposition rule}, i.e., a map expressing its general solution in terms of a generic family of particular solutions and some constants.…

Mathematical Physics · Physics 2015-12-24 P. G. Estévez , F. J. Herranz , J. de Lucas , C. Sardón

A Lie-Hamilton system is a nonautonomous system of first-order ordinary differential equations describing the integral curves of a $t$-dependent vector field taking values in a finite-dimensional real Lie algebra of Hamiltonian vector…

Mathematical Physics · Physics 2015-08-06 A. Blasco , F. J. Herranz , J. de Lucas , C. Sardon

A Lie system is a system of differential equations describing the integral curves of a $t$-dependent vector field taking values in a finite-dimensional real Lie algebra of vector fields, a Vessiot-Guldberg Lie algebra. We define and analyze…

Mathematical Physics · Physics 2015-12-23 F. J. Herranz , J. de Lucas , C. Sardon

A Lie system is a nonautonomous system of first-order differential equations possessing a superposition rule, i.e. a map expressing its general solution in terms of a generic finite family of particular solutions and some constants.…

Mathematical Physics · Physics 2013-11-01 A. Ballesteros , J. F. Cariñena , F. J. Herranz , J. de Lucas , C. Sardón

We introduce and investigate the concept of Stratified Algebra, a new algebraic framework equipped with a layer-based structure on a vector space. We formalize a set of axioms governing intra-layer and inter-layer interactions, study their…

General Mathematics · Mathematics 2025-05-27 Stanislav Semenov

A Lie system is the non-autonomous system of differential equations describing the integral curves of a non-autonomous vector field taking values in a finite-dimensional Lie algebra of vector fields, a so-called Vessiot--Guldberg Lie…

Mathematical Physics · Physics 2025-11-18 X. Gràcia , J. de Lucas , M. C. Muñoz-Lecanda , S. Vilariño

Using Morita type stratifications, we establish a one-to-one correspondence between geometric vector fields on a separated differentiable stack and stratified vector fields on its orbit space. This correspondence enables us to derive a…

Differential Geometry · Mathematics 2026-05-06 Mateus de Melo , Juan Sebastian Herrera-Carmona , Fabricio Valencia

A Lie system is a system of differential equations admitting a superposition rule, i.e., a function describing its general solution in terms of any generic set of particular solutions and some constants. Following ideas going back to the…

Mathematical Physics · Physics 2015-03-03 J. F. Cariñena , J. Grabowski , J. de Lucas , C. Sardón

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 generic family of particular solutions and some constants…

Probability · Mathematics 2025-11-11 E. Fernández-Saiz , J. de Lucas , X. Rivas , M. Zajac

We define and analyse the properties of contact Lie systems, namely systems of first-order differential equations describing the integral curves of a $t$-dependent vector field taking values in a finite-dimensional Lie algebra of…

Mathematical Physics · Physics 2023-08-09 Javier de Lucas , Xavier Rivas

Stratified groups are those simply connected Lie groups whose Lie algebras admit a derivation for which the eigenspace with eigenvalue 1 is Lie generating. When a stratified group is equipped with a left-invariant path distance that is…

Differential Geometry · Mathematics 2020-08-31 Enrico Le Donne , Francesca Tripaldi

We study Lie-Hamilton systems on the plane, i.e. systems of first-order differential equations describing the integral curves of a $t$-dependent vector field taking values in a finite-dimensional real Lie algebra of planar Hamiltonian…

Mathematical Physics · Physics 2015-02-18 A. Ballesteros , A. Blasco , F. J. Herranz , J. de Lucas , C. Sardón

A stratified space is a topological space equipped with a \emph{stratification}, which is a decomposition or partition of the topological space satisfying certain extra conditions. More recently, the notion of poset-stratified space, i.e.,…

General Topology · Mathematics 2025-07-09 Lukas Waas , Jon Woolf , Shoji Yokura

This work concerns the definition and analysis of a new class of Lie systems on Poisson manifolds enjoying rich geometric features: the Lie--Hamilton systems. We devise methods to study their superposition rules, time independent constants…

Mathematical Physics · Physics 2017-09-01 J. F. Cariñena , J. de Lucas , C. Sardón

A Lie system is a non-autonomous system of first-order ordinary differential equations describing the integral curves of a non-autonomous vector field taking values in a finite-dimensional real Lie algebra of vector fields, a so-called…

Mathematical Physics · Physics 2022-07-04 Javier de Lucas , Xavier Gràcia , Xavier Rivas , Narciso Román-Roy , Silvia Vilariño

A powerful method for solving non-linear first-order ordinary differential equations, which is based on geometrical understanding of the corresponding dynamics of the so called Lie systems, is developed. This method allows us not only to…

Mathematical Physics · Physics 2011-11-22 Jose F. Carinena , Janusz Grabowski , Javier de Lucas

The Stratified Foundations are a restriction of naive set theory where the comprehension scheme is restricted to stratifiable propositions. It is known that this theory is consistent and that proofs strongly normalize in this theory.…

Logic in Computer Science · Computer Science 2023-05-31 Gilles Dowek
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