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We show that all Lie point symmetries of various classes of nonlinear differential equations involving critical nonlinearities are variational/divergence symmetries.
Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Nonlinear Sciences - Exactly Solvable and Integrable Systems, QA1-939, FOS: Physical sciences, divergence symmetry, critical exponents, Mathematical Physics (math-ph), Exactly Solvable and Integrable Systems (nlin.SI), Mathematics, Mathematical Physics
Nonlinear Sciences - Exactly Solvable and Integrable Systems, QA1-939, FOS: Physical sciences, divergence symmetry, critical exponents, Mathematical Physics (math-ph), Exactly Solvable and Integrable Systems (nlin.SI), Mathematics, Mathematical Physics
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