Affiliation:
1. College of Mathematics, Taiyuan University of Technology, Taiyuan 030024, China
Abstract
In this paper, the Lie group method is performed on a special dark fluid, the Chaplygin gas, which describes both dark matter and dark energy in the present universe. Based on an optimal system of one-dimensional subalgebras, similarity reductions and group invariant solutions are given. Finally, by means of Ibragimov’s method, conservation laws are obtained.
Funder
Natural Science Foundation of Shanxi Province
Cited by
6 articles.
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