TY - JOUR TT - Lie Symmetry Method for Solutions of Differential Equations with Applications in Physics AU - Hejazı, Seyed Reza AU - Saberı, Elaheh AU - Mahdavı, Paeezeh PY - 2015 DA - May JF - Cumhuriyet Üniversitesi Fen Edebiyat Fakültesi Fen Bilimleri Dergisi PB - Sivas Cumhuriyet University WT - DergiPark SN - 1300-1949 SP - 2223 EP - 2233 VL - 36 IS - 3 KW - Differential equations KW - Fluid Mechanics KW - boundary layers KW - Newtonian fluid KW - Flows of vector fields KW - heat transfer equation N2 - Abstract. A mathematical method in pure mathematics (differential geometry) for finding solutions of differential equations is considered. The method is based on constructing a Lie algebra associated to a given system of differential equation, called Lie algebra of the symmetries of the given system. This Lie algebra is a vector space which maps a given solution, such as a constant solution, to another solution, it is a significant tool for finding new solution for system of differential equation specially partial differential equations. Then we will apply it to some differential equations in fluid mechanics and physics. CR - Bluman J.W., Kumei S. (1989). Symmetry and Differential Equations. New York: Applied Mathematic SciencesSpringer-Verlag. CR - Hopf E. (1950). The Partial Differential Equation t uux ut CR - xx. 3, pp. 201-230. ME: CR - uxx. 3, pp. 201-230. ME: CR - Comm. Pue Appl. Math. CR - Kumei S. (n.d.). A Group Classification on Non-Linear Differential Equations. Vancouver, BC.: Ph.D. Thesis, University of British Colombia,. CR - Matsuda M. (1970). Two Methods of Integrating Monge-Ampere Equations I,. 150, pp. 327-343. Trans. Amer. Math. Soc. CR - Olver P.J. (1979). Symmetry Group and Group Invariant Solution of Partial Differential Equations. 14, pp. 497-442. J., Differential Geometry,. CR - Olver P.J. (1993). Application of Lie Groups to Differential Equations. 107. New York: Second Edition, Graduate Texts in Mathematics, Springer-Verlag. CR - Stephani H. (1989). Differential Equations, Their Solutions Using Symmetries. New York: Cambridge University Press, Cambridge. CR - W.F., A. (1972). Nonlinear Partial Differential Equations in Engineering. New York: Academic Press. UR - https://dergipark.org.tr/en/pub/cumuscij/issue//564540 L1 - https://dergipark.org.tr/en/download/article-file/713992 ER -