Mostafa Eslami - Department of Mathematics , Faculty of Mathematical Sciences , University of Mazandaran , Babolsar , Iran
Hadi Estebsari - Department of Mathematics, Iran University Science, and Technology,Tehran, Iran

In this paper , the Q-function method is employed to obtain exact solution of the coupled sine-Gordon equation . This equation has applications in many diverseareas . Comparing our result with the previous result , It is shown that the result is new.

Coupled sine-Gordon equation; Q-function