λ-Symmetry method and the Prelle-Singer method for third-order differential equations

Subject Areas : Applied Mathematics

Khodayar Goodarzi ¹

1 - Department of Mathematics, Brujerd Branch, Islamic Azad University, Broujerd, Iran

Received: 2018-01-06 Accepted : 2018-03-19 Published : 2018-12-01

Keywords: کاهش مرتبه, تقارن, فرست انتگرال, فاکتور انتگرال, لاندا-تقارن,