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Bruell, G. (author), Ehrnström, Mats (author), Geyer, A. (author), Pei, Long (author)
We show that for a large class of evolutionary nonlinear and nonlocal partial differential equations, symmetry of solutions implies very restrictive properties of the solutions and symmetry axes. These restrictions are formulated in terms of three principles, based on the structure of the equations. The first principle covers equations that...
journal article 2017