Sums of units in function fields
arXiv:1311.4676 · doi:10.1007/s00605-010-0219-7
Abstract
Let R be the ring of S-integers of an algebraic function field (in one variable) over a perfect field, where S is finite and not empty. It is shown that for every positive integer N there exist elements of R that can not be written as a sum of at most N units.
18 pages