3 citations · 4 across the 2 of their papers we have counts for
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math-ph2003★ 3 cited
The group classification of one class of nonlinear wave equations
Victor I. Lahno, Olena V. Magda
The problem of group classification of one class of quasilinear equations of hyperbolic type with two independent variables has been solved completely.
math-ph2001
Invariance of the quasilinear equations of hiperbolic type with respect to the three-parametric Lie algebras
Olena Magda
We have solved completely the problem of the description of quasi-linear hyperbolic differential equations in two independent variables that are invariant under three-parameter Lie…
math-ph2000
The Structure of Lie Algebras and the Classification Problem for Partial Differential Equations
P. Basarab-Horwath, V. Lahno, R. Zhdanov
The present paper solves completely the problem of the group classification of nonlinear heat-conductivity equations of the form\ . We…