New Existence and Nonexistence Results for Strong External Difference Families

preprint2016arXivOpen access

Abstract

In this paper, we use character-theoretic techniques to give new nonexistence results for (n,m,k,λ)(n,m,k,λ)-strong external difference families (SEDFs). We also use cyclotomic classes to give two new classes of SEDFs with m=2m=2.

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