pp 81-94 May 1981

Units of hill curves

H P McKean

pp 95-102 May 1981

A submersion principle and its applications

Harish-Chandra

pp 103-123 May 1981

Geometric construction of cohomology for arithmetic groups I

John J Millson M S Raghunathan

pp 125-128 May 1981

Polarisations on an abelian variety

M S Narasimhan M V Nori

pp 129-149 May 1981

Poisson formulae of Hecke type

S Raghavan S S Rangachari

pp 151-166 May 1981

Orthogonal and spin bundles over hyperelliptic curves

S Ramanan