Rani, Neelam, Department of Physics, J. C. Bose University of Science and Technology, YMCA, Faridabad, Haryana Rani, Upasana, Department of Physics, Banasthali Vidyapith, Rajasthan, India Rao, A. Ganapathi, Department of Basic Sciences and Humanities, GMR Institute of Technology, Rajam, India Rao, A. Ganapathi, Department of Basic Sciences and Humanities, GMR Institute of Technology, Rajam, India Rao, A. Krishna, Department of Mathematics, Government Degree College, Chodavaram, Andhrapradesh, India Rao, A. Srinivasa, Andhra University, Visakhapatnam, India Rao, B. Purna Chandra, Department of Chemistry, Gandhi Institute of Technology and Management, Hyderabad, Telangana, India Rao, D. Purnachandra , Department of Mathematics, Matrusri Engineering College, Saidabad, Hyderabad, Telangana, India Rao, Diddi Srinivasa, Department of Mathematics, Aditya University, Surampalem, India Rao, Gade Narsinga, Department of Physics. Marri Laxman Reddy Institute of Technology and Management, Dundigal, Hyderabad, Telangana, India Rao, L. Srinivasa, Centre for Nanoscience and Technology, Department of Physics, VNR Vignana Jyothi Institute of Engineering and Technology, Bachupally, HYD., TG, India Rao, M.P.V.V. Bhaskara , Department of Basic Sciences and Humanities, Vignan’s Institute of Information Technology (A), Vishakhapatnam, Andhra Pradesh, India Rao, M.V. Subba , Department of Mathematics, Anil Neerukonda Institute of Technology & Sciences (ANITS), Visakhapatnam, India Rao, S. Ramalingeswara, Department of EM&H, S.R.K.R. Engineering College, Bhimavaram, Andhra Pradesh – 534204, India Rao, Shiva, Department of Mathematics, Dibrugarh University, Dibrugarh, India Rashid, Farhan Lafta, University of Kerbala, College of Engineering, Petroleum Engineering Department, Iraq Rashid, Farhan Lafta, University of Kerbala, College of Engineering, Petroleum Engineering Department, Iraq Rashid, Harun Al, Department of Mathematics, Bilasipara College, Assam, India Rashid, Harun Al, Department of Mathematics, Bilasipara College, Bilasipara, India Rashid, Jamal M., University of Sulaimani, College of Science, department of Physics, Qlyasan street, Sulaymaniyah, Kurdistan Region, Iraq Rasulov, Rustam Y., Fergana State University, Fergana, Uzbekistan Rasulov, Rustam Y., Fergana State University, Fergana, Uzbekistan Rasulov, Vokhob, Fergana State University, Fergana, Uzbekistan Rasulov, Vokhob R., Fergana State University, Fergana, Uzbekistan Rasulov, Vokhob R., Fergana State University, Fergana, Uzbekistan Rasulov, Vokhob R., Fergana State University, Fergana, Uzbekistan Rasulov, Voxob R., Fergana State University, Fergana, Uzbekistan Rasulov, Voxob R., Fergana State University, Fergana, Uzbekistan Rasulov, Voxob R., Fergana State University, Fergana, Uzbekistan Rasulov, Voxob R., Fergana State University, Fergana, Uzbekistan Rasulova, Markhabo B., Andijan state university named after Z.M. Babur, Andijan, Uzbekistan Rath, P.K., Centurion University of Technology and Management, Odisha, India Rath, Prasanta Kumar , Centurion University of Technology and Management, Paralakhemundi, Odisha, India Rath, Prasanta Kumar, Centurion University of Technology and Management, Paralakhemundi, Odisha, India; Department of Physics, University of Naples “Federico II” and INFN, Naples, Italy Rathore, Nisha Singh , Department of Applied Sciences, KCC Institute of Technology and Management, Greater Noida, India Rathore, Nisha Singh , Department of Applied Sciences, KCC institute of Technology and Management, Greater Noida, India Raut, Vilas, Department of Mathematics, M. M. Mahavidyalaya, Darwah, Dist. Yavatmal-India Raut, Vilas B., Department of Mathematics, Mungsaji Maharaj Mahavidyalaya, Darwha, Dist. Yavatmal, Maharashtra, India Rautkar, Dhiraj, Department of Mathematics, PRMIT&R, Badnera-Amaravati, India Ravikumar, Vanipenta, Department of Mathematics, Annamacharya Institute of Technology and Sciences, (Autonomous), Rajampet, Andhra Pradesh, India Rawat, T.K., GLA University, Greater Noida, India Ray, Pranjal Kumar, Department of Mathematics, Gyanpeeth Degree College, Nikashi, Baksa, BTR-781372, Assam, India Raza, Ali, Department of Mathematics and Statistical Sciences, Lahore School of Economics, Lahore, Pakistan; Department of Mathematical Sciences, University of Stellenbosch, Stellenbosch, South Africa Raza, Muhammad, Department of Mathematics, COMSATS University Islamabad, Sahiwal, Pakistan Raza, Salman, Department of Physics, University of Karachi, Karachi, Pakistan Razikov, Takhirdjon M., Institute of Semiconductor Physics and Microelectronics at the National University of Uzbekistan, Tashkent, Uzbekistan Razykov, T.M., Physical and Technical Institute of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan Razykov, T.M., Physical-Technical Institute, Tashkent, Uzbekistan; Institute of Semiconductors Physics and Microelectronics, Tashkent, Uzbekistan Razzakov, J.A., Urgench State University, Urgench, Uzbekistan Razzokov, A.Sh., Urgench State University, Urgench, Uzbekistan