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Time-fixed geometry of 2nd order ODEs
M. Nadjafikhah , A.r. Forough ,
Volume 18, Issue 1 (International Journal of Engineering 2007)
Abstract

Abstract : Let be a 2nd order ODE. By Cartan equivalence method, we will study the local equivalence problem under the transformations group of time-fixed coordinates. We are going to solve this problem by an applicable method which has been recognized by R. Gardner, and classify them.

  


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