S.Sunitha Devi

Department of Mathematics, Vignan Institute of Information Technology, Visakhapatnam, Andhra Pradesh, India

K.L.Sai Prasad

Department of Mathematics, Gayatri Vidya Parishad College of Engineering for Women, Visakhapatnam, Andhra Pradesh, India

G.V.S.R. Deekshitulu

Department of Mathematics, Jawaharlal Nehru Technological University, Kakinada, Andhra Pradesh, India