1. Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), P. O. Box 55134-441, Maragha, Iran
2. ISEM, Inst. for Scientific Methodology, PA, Italy
3. School of Advanced International Studies on Applied Theoretical and Non Linear Methodologies in Physics, Bari, Italy
4. International Institute for Applicable Mathematics and Information Sciences, Adarshnagar, Hyderabad 500063, India
5. Institut de Mathématiques et de Sciences Physiques (IMSP), 01 BP 613 Porto-Novo, Bénin