Sigurdur Helgason
Collections in this community
Recent Submissions

Topologies of group algebras and a theorem of Littlewood ?
(American Mathematical Society, 1957)An important problem in Fourier analysis is that of investigating the relationship between the "size" of a function and the "size" of its Fourier transform. The present paper can be regarded as a contribution to this problem. 
Response to Steele Prize Award ?
(American Mathematical Society, 1988) 
Invariant differential equations on homogeneous manifolds ?
(American Mathematical Society, 1977)