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- W4384268506 abstract "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, so as to emphasise their applications. We correct the known stochastic Lie theorem characterising stochastic Lie systems, proving that, contrary to previous claims, it satisfies the Malliavin's principle. Meanwhile, we show that stochastic Lie systems admit new stochastic features in the Ito approach. New generalisations of stochastic Lie systems, like the so-called stochastic foliated Lie systems, are devised. Subsequently, we focus on stochastic (foliated) Lie systems that can be studied as Hamiltonian systems using different types of differential geometric structures. We study their stability properties and we devise the basics of an energy-momentum method. A stochastic Poisson coalgebra method is developed to derive superposition rules for Hamiltonian stochastic Lie systems. Applications of our results are found in coronavirus stochastic models, stochastic Lotka-Volterra systems, stochastic SIS models of different types, etc. Our results improve previous approaches by using stochastic differential equations instead of deterministic models designed to grasp some of their stochastic features." @default.
- W4384268506 created "2023-07-14" @default.
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- W4384268506 date "2023-07-12" @default.
- W4384268506 modified "2023-10-14" @default.
- W4384268506 title "Hamiltonian stochastic Lie systems and applications" @default.
- W4384268506 doi "https://doi.org/10.48550/arxiv.2307.06232" @default.
- W4384268506 hasPublicationYear "2023" @default.
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