Active academic thoughts and extensive academic exchanges. According to the relevant data of Northeast Normal University, the teachers in the Department of Applied Mathematics of Northeast Normal University have active academic thoughts and extensive academic exchanges, and have maintained close cooperative relations with famous scholars in the United States, Canada, France, Britain, Japan and other countries. Since 2005, * * * has invited domestic and foreign scholars 17 to give lectures, including 3 from the United States, 5 from Canada, 0/from France, 3 from Scotland 1 from Japan and 4 from China (including Taiwan Province Province 1 from here). * * * Six people visited abroad, including four from Canada, Scotland 1 and Japan1; * * * Attended 23 academic conferences at home and abroad, including 3 international conferences/kloc-0 and 3 overseas conferences.