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pro vyhledávání: '"Astri Sjoberg"'
Autor:
Astri Sjoberg, I. Ozgul Kartal
Publikováno v:
Journal of Nonlinear Mathematical Physics. 15:203
We present the Lie point symmetries admitted by third order partial differential equations (PDEs) which model the pressure of a visco-elastic liquid with relaxation which filtrates through a porous medium. The symmetries are used to construct reducti