1982 VAIDYA, Arun Madhusudan (b. 1935) PhD, Formerly Professor, Mathematics Dept., Gujarat University, Ahmedabad; Res. 9, Dhanushdhari Soc., Near Dharnidhar Temple, Ahmedabad – 380007; Tel: (079) 26621507(R), 09824633794(M); Email: ; Sp. Theory of Numbers (Mathematics).