1992 BALASUBRAMANIAN, Ramachandran (b. 1951) PhD,FNA,FASc, Professor Emeritus, The Institute of Mathematical Sciences, Taramani, Chennai – 600113; Res. 10 Golden Avenue, Velachary, Chennai – 600042; Tel: (044) 22591626(R), 09840017480(M); Email: ; Sp. Number Theory.