Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4601435 | Linear Algebra and its Applications | 2011 | 12 Pages |
Abstract
Let A be an association scheme on q≥3 vertices. We show that the Bose–Mesner algebra of the generalized Hamming scheme H(n,A), for n⩾2, is not the Nomura algebra of any type II matrix.This result gives examples of formally self-dual Bose–Mesner algebras that are not the Nomura algebras of type II matrices.
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