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{$\mu$-conservation law and conservation law of extended mKdV equation}

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 \title{\normalsize{\textbf{$\mu$-SYMMETRY, $\mu$-CONSERVATION LAW AND CONSERVATION LAW FOR THE EXTENDED mKdV EQUATION}}}

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 \address{\footnotesize{\textit{Department of Mathematics, University of Science and Technology,\\ Narmak, Tehran, I.R.Iran.}\\
\email{m\_nadjafikhah@iust.ac.ir}}}

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\footnotesize{\textit{In this paper, we obtain $\mu$-conservation law and conservation law of the extended mKdV equation. The extended mKdV equation dose not admits a variational problem since it is of odd order. First we obtain $\mu$-conservation law of the potential extended mKdV equation because it admit a variational problem, by using it, we can obtain $\mu$-conservation law of the extended mKdV equation. Moreover, we obtain conservation law of the extended mKdV equation by utilizing differential $p$-forms.}}
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