TY  - BOOK
AU  - Helson, Henry
AU  - 
TI  - Lectures on invariant subspaces
U1  - 512.74  HEL-L;1 
PY  - 1964///
CY  - Academic Press, New York
KW  - Algebraic number theory-- Invariant theory-- P-adic numbers-- Quadratic forms-- Algebraic function
ER  -