M.V.Chakradhararao Assistant Professor in Mathematics, School of Engineering, Presidency University, Bangalore And Research scholar, Acharya Nagarjuna University, Guntur
B.Satyanarayana, Assistant Professor, Department of Mathematics,Acharya Nagarjuna University, Guntur.
K.A.Venkatesh, Professor in Mathematics and Comp. Science, School of Engineering,Presidency University, Bangalore