2006/10/27 by Martin Oberlack, Oberlack, Martin, Marta Waclawczyk +1
Mathematics · Physics and Astronomy · #12E12 #20N99 #FOS: Physical sciences #Mathematical Physics (math-ph) #math-ph #math.MP #msc:12E12 #msc:20N99
paper · pdf · doi:10.48550/arxiv.math-ph/0610080
24 pages
arxiv created 2006/10/27 · arxiv updated 2009/12/01
In the present paper the classical point symmetry analysis is extended from partial differential to functional differential equations with functional derivatives. In order to perform the group analysis and deal with the functional derivatives we extend the quantities such as infinitesimal transformations, prolongations and invariant solutions. For the sake of example the procedure is applied to the continuum limit of the heat equation. The method can further lead to significant applications in statistical physics and fluid dynamics.