1. Department of Applied Mathematics, UIT-Rajiv Gandhi Technological University (RGPV), University of Technology of Madhya Pradesh, Bhopal 462033, India
2. Department of Applied Sciences, National Institute of Technical Teachers’ Training and Research (Under Ministry of HRD, Govt. of India), Bhopal 462002, MP, India
3. Faculty of Mathematics and Computer Science, Babeş-Bolyai University Cluj-Napoca, Romania
4. Academy of Romanian Scientists, Bucharest, Romania