We extend two of the methods previously introduced to find discrete symmetries of differential equations to the case of difference and differential-difference equations. As an example of the application of the methods, we construct the discrete symmetries of the discrete Painleve I equation and of the Toda lattice equation.
Levi, D., Rodriguez, M.a. (2004). Lie discrete symmetries of lattice equations. JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL, 37(5), 1711-1725 [10.1088/0305-4470/37/5/016].
Lie discrete symmetries of lattice equations
LEVI, Decio;
2004-01-01
Abstract
We extend two of the methods previously introduced to find discrete symmetries of differential equations to the case of difference and differential-difference equations. As an example of the application of the methods, we construct the discrete symmetries of the discrete Painleve I equation and of the Toda lattice equation.File in questo prodotto:
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