Constructions for Hadamard matrices using Clifford algebras, and their relation to amicability / anti-amicability graphs

نویسندگان

  • Paul C. Leopardi
  • Kathy Horadam
چکیده

It is known that the Williamson construction for Hadamard matrices can be generalized to constructions using sums of tensor products. This paper describes a specific construction using real monomial representations of Clifford algebras, and its connection with graphs of amicability and anti-amicability. It is proven that this construction works for all such representations where the order of the matrices is a power of 2. Some related results are given for small dimensions.

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Constructions for Hadamard matrices, Clifford algebras, and their relation to amicability / anti-amicability graphs

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تاریخ انتشار 2014