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nlin.SI2005
Equivalence transformations and differential invariants of a generalized nonlinear Schrödinger equation
M. Senthilvelan, M. Torrisi, A. Valenti
By using the Lie's invariance infinitesimal criterion we obtain the continuous equivalence transformations of a class of nonlinear Schrödinger equations with variable coefficients.…
nlin.SI2004
On the differential invariants of a family of diffusion equations
M. Torrisi, R. Tracinà
The equivalence transformation algebra for the class of equations is obtained. After getting the differential invariants with respect to $L_{\…