2000 character limit reached
Singly-even self-dual codes with minimal shadow (1106.5936v2)
Published 29 Jun 2011 in math.CO, cs.IT, and math.IT
Abstract: In this note we investigate extremal singly-even self-dual codes with minimal shadow. For particular parameters we prove non-existence of such codes. By a result of Rains \cite{Rains-asymptotic}, the length of extremal singly-even self-dual codes is bounded. We give explicit bounds in case the shadow is minimal.