Two approaches to the calculation of approximate symmetry exemplified using a system of advection–diffusion equations

Moisture movement in porous materials under temperature gradients

Transactions American Geophysical Union · 1957 · 2.4K citations

Engineering, Materials Science, Soil Sciences +17

Simultaneous transfer of heat and moisture in porous media

D. A. de Vries · Transactions American Geophysical Union · 1958 · 650 citations

Agriculture, Soil Sciences, Heat Transfer +16

On approximate symmetry and approximate solutions of the nonlinear wave equation with a small parameter

W. I. Fushchich, W. M. Shtelen · Journal of Physics A Mathematical and General · 1989 · 143 citations

Natural Sciences, Mathematics, Physics +13

Comparison of Approximate Symmetry Methods for Differential Equations

Mehmet Pakdemi̇rli̇, Muhammet Yürüsoy, İhsan Timuçin Dolapçı · Acta Applicandae Mathematicae · 2004 · 64 citations

Natural Sciences, Mathematics, Physics +10

Lie symmetry classification analysis for nonlinear coupled diffusion

Andrey Gladkov, R. J. Wiltshire · Journal of Physics A Mathematical and General · 1998 · 22 citations

Natural Sciences, Mathematics, Differential Equations +16