Honors:


1975-present Member of the Irainian Mathematical Society
1990-1991 Visiting professor, University of California at Losangles(UCLA) (Sabbitical leave)
1990-present Reviewer, International Journal of Engineering & Science, Iran
1990 - present Reviewer, J. Sci. I. R. Iran
1990-present Reviewer, Bullentin of the Iranian Mathematical Society
1997-present Member of the New york Academy of Sciences
1999-present Member of the American Mathematical Society
2001 Distinguished researcher school of mathematics , IUST
2002 Distinguished researcher Islamic Azad university, Karaj Branch, Iran
2003 Distinguished researcher school of mathematics , IUST, Iran
2003-2008 Member of editorial board of the journal of science and technology, Amirkabir university, Tehran, Iran
2003 Winner of prize the best paper in 34th annual Iranian mathematics conference, 30 Aug-2 Sept, 2003, Shahrood university, Iran  
2005 Distinguished Professor of Islamic Azad university, Karaj Branch, Iran
2005-present Member of editorial board of the mathematical Scientific journal, Islamic Azad university, Arak Branch, Iran
2005-present Reviewer, Journal of Computational & Applied Mathematics, (CAM)
2005-present Reviewer, International Journal of Computer Mathematics (IJCM)
2006 Distinguished researcher school of mathematics , IUST, Iran
2006-present Editor in chief, Journal of mathematical sciences, Islamic Azad university, Karaj Branch, Iran
2006-present Reviewer, Journal of Applied Mathematics & Computation (AMC)
2007 Distinguished researcher of Islamic Azad university, Karaj Branch, Iran
2007-present Member of editorial board of the open Cybernetics & Systematics Journal
2011 Distinguished research school of Mathematics, IUST, Iran
2011-present Editor in chief indexed by Thomson Reuters (ISI) published by Springer
2014 Top researcher, KIAU
2014-present Member of verification committee ,IUST
2015 Top one percent of the scientists in the world , (ESI) of Thomson Reuters and IUST
Link IUST-2015
2016 Top one percent of the scientists in the world, (ESI) of Thomson Reuters and IUST
Link IUST-2016
2017 Top one percent of the scientists in the world, (ESI) of Thomson Reuters and IUST
Link IUST-2017