The paper classifies Lie symmetries and invariant solutions for the fourth-order biharmonic heat equation on surfaces of revolution, but its advertised match with the harmonic heat equation is contradicted by the scaling generators it derives.
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Lie point symmetries of the biharmonic heat equation on surfaces of revolution
The paper classifies Lie symmetries and invariant solutions for the fourth-order biharmonic heat equation on surfaces of revolution, but its advertised match with the harmonic heat equation is contradicted by the scaling generators it derives.