Results 11 to 20 of about 111,509 (220)
Lie point symmetries of differential--difference equations [PDF]
Journal of Physics A: Mathematical and Theoretical, 2010 We present an algorithm for determining the Lie point symmetries of differential equations on fixed non transforming lattices, i.e. equations involving both continuous and discrete independent variables.
Adler V E +23 more
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Random Lie-point symmetries of stochastic differential equations [PDF]
Journal of Mathematical Physics, 2017 We study the invariance of stochastic differential equations under random diffeomorphisms, and establish the determining equations for random Lie-point symmetries of stochastic differential equations, both in Ito and in Stratonovich form. We also discuss
Gaeta, Giuseppe, Spadaro, Francesco
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Lie point symmetries and ODEs passing the Painlev\'e test [PDF]
Journal of Nonlinear Mathematical Physics, 2018 The Lie point symmetries of ordinary differential equations (ODEs) that are candidates for having the Painlev\'e property are explored for ODEs of order $n =2, \dots ,5$. Among the 6 ODEs identifying the Painlev\'e transcendents only $P_{III}$, $P_V$ and
Levi, Decio +2 more
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Lie point symmetries for generalised Fisher's equations describing tumour dynamics
Mathematical Biosciences and Engineering, 2021 A huge variety of phenomena are governed by ordinary differential equations (ODEs) and partial differential equations (PDEs). However, there is no general method to solve them. Obtaining solutions for differential equations is one of the greatest problem
Salvador Chulián +3 more
doaj +5 more sources
On Lie point symmetries in differential games [PDF]
SSRN Electronic Journal, 2010 A technique to determine closed-loop Nash equilibria of n-player differential games is developed when their dynamic state-control system is composed of decoupled ODEs. In particular, the theory of Lie point symmetries is exploited to achieve first integrals of such systems.
Арсен Палестини
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Lie point symmetries and first integrals: The Kowalevski top [PDF]
Journal of Mathematical Physics, 2003 We show how the Lie group analysis method can be used in order to obtain first integrals of any system of ordinary differential equations. The method of reduction/increase of order developed by Nucci [J. Math. Phys. 37, 1772–1775 (1996)] is essential. Noether’s theorem is neither necessary nor considered.
M. Marcelli, M. C. Nucci
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Lie point and variational symmetries in minisuperspace Einstein gravity [PDF]
Journal of Physics A: Mathematical and Theoretical, 2014 Latex source file 20 pages, no ...
T. Christodoulakis +2 more
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Random Lie-point symmetries [PDF]
Journal of Nonlinear Mathematical Physics, 2014 We introduce the notion of a random symmetry. It consists of taking the action given by a deterministic flow that maintains the solutions of a given differential equation invariant and replacing it with a stochastic flow. This generates a random action, which we call a random symmetry.
Pedro Catuogno, Luis R. Lucinger
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How to obtain Lie point symmetries of PDEs
Journal of Mathematics and Computer Science, 2020 Sajid Mohammad Kadhim +2 more
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Lie symmetry analysis for generalized short pulse equation
Open Physics, 2022 Lie symmetry analysis (LSA) is one of the most common, effective, and estimation-free methods to find the symmetries and solutions of the differential equations (DEs) by following an algorithm.
Zhao Weidong +4 more
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