In Hadamard Matrices and Their Applications, KJ Horadam provides the first unified account
of cocyclic Hadamard matrices and their applications in signal and data processing. This …

Complex Hadamard matrices, consisting of unimodular entries with arbitrary phases, play an
important role in the theory of quantum information. We review basic properties of complex …

The intended purpose of this work is to provide the reader with a comprehensive, state-of-
the art presentation of the theory of complex Hadamard matrices, or at least report on the …

In this paper Butson-type complex Hadamard matrices $\mathrm {BH}(n, q) $ of order $ n $
over the complex $ q $ th roots of unity are classified for small parameters by computer …

In this paper we use a design theoretical approach to construct new, previously unknown
complex Hadamard matrices. Our methods generalize and extend the earlier results of de la …

We develop a combinatorial approach to the quantum permutation algebras, as Hopf
images of representations of type π: As (n)→ B (H). We discuss several general problems …

12 A survey of group invariant Butson matrices and their relation to generalized bent functions
and various other objects Page 1 Bernhard Schmidt 12 A survey of group invariant Butson …

It is well-known that a complex Hadamard matrix of order 2 n 2 n can be used to construct a
Hadamard matrix of order 4 n 4 n. Let γ γ be a primitive complex cube root of unity. In this …

We classify all the cocyclic Butson Hadamard matrices BH (n, p) of order n over the p th roots
of unity for an odd prime p and np≤ 100. That is, we compile a list of matrices such that any …

Some combinatorial designs, such as Hadamard matrices, have been extensively
researched and are familiar to readers across the spectrum of Science and Engineering …