Affiliation:
1. Faculty of Science and Engineering Waseda University Tokyo Japan
2. Institute for Promotion of Higher Education Kobe Gakuin University Kobe Japan
Abstract
AbstractIn the present paper, we give an Assmus–Mattson type theorem for near‐extremal Type I and even formally self‐dual codes. We show the existence of 1‐designs or 2‐designs for these codes. As a corollary, we prove the uniqueness of a self‐orthogonal 2‐ design.
Funder
Japan Society for the Promotion of Science
Subject
Discrete Mathematics and Combinatorics
Reference31 articles.
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