Conference matrix

In mathematics, a conference matrix (also called a C-matrix) is a square matrix C with 0 on the diagonal and +1 and −1 off the diagonal, such that…

Papers overview

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2017

2017

We present the theory of equiangular tight frames (ETFs) from association schemes as a generalization of harmonic ETFs. This…

2015

N. A. Balonina, Dr. Sc., Tech., Professor, korbendfs@mail.ru M. B. Sergeeva, Dr. Sc., Tech., Professor, mbse@mail.ru Ofer Hadarb…

2013

Previously, self-dual codes have been constructed from weighing matrices, and in particular from conference matrices (skew and…

2007

In the present article we concentrate our study on the growth problem for the weighing matrix W(12,11) and show that the unique W…

2006

Previously, self-dual codes ternary have been constructed from conference matrices. In this paper, we present codes constructed…

2005

2004

In this paper, codes over F5 with parameters [36, 18, 12], [48, 24, 15], [60, 30, 18], [64, 32, 18] and [76, 38, 21] which…

1993

The concept of semi-regular sets of matrices was introduced by J. Seberry in "A new construction for Williamson-type matrices…

1985