In order to understand the recycling and emission processes of hydrogen atoms in HT-7, spectral profiles of the Dα(Hα) line emitted in front of the limiter ha
In this paper a type of 9-dimensional vector loop algebra (F) is constructed,which is devoted to establish an isospectral problem.It follows that a Liouville in
In this paper Mei symmetry is introduced for a nonconservative system.The necessary and sufficient condition for a Mei symmetry to be also a Lie symmetry is der