Masters Theses

Date of Award

8-2001

Degree Type

Thesis

Degree Name

Master of Science

Major

Mathematics

Major Professor

Gretchen Matthews

Committee Members

David F. Anderson, Pavlos Tzermias

Abstract

Coding theory is a branch of mathematics that began in the 1940's to correct errors caused by noise in communication channels. It is know that certain nonlinear codes satisfy the MacWilliams Identity. Much research has been done to explain this relation- ship. In the early 1990's, five coding theorists discovered that nonlinear codes have linear properties if viewed under the alphabet Z4 rather than the usual alphabet F2. In 1994, these coding theorists published their results in a joint paper in IEEE Transactions on Information Theory. In this study, linear codes and nonlinear codes are introduced and characterized as Z4-linear codes to understand the importance of this discovery.

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