11 citations · 12 across the 4 of their papers we have counts for
4 papers
Some non-existence and asymptotic existence results for weighing matrices
Ebrahim Ghaderpour
Orthogonal designs and weighing matrices have many applications in areas such as coding theory, cryptography, wireless networking and communication. In this paper, we first show th…
Some Constructions for Amicable Orthogonal Designs
Ebrahim Ghaderpour
Hadamard matrices, orthogonal designs and amicable orthogonal designs have a number of applications in coding theory, cryptography, wireless network communication and so on. Produc…
Signed group orthogonal designs and their applications
Ebrahim Ghaderpour
Craigen introduced and studied {\it signed group Hadamard matrices} extensively in \cite{Craigenthesis, Craigen}. Livinskyi \cite{Ivan}, following Craigen's lead, studied and provi…
Map Projection
Ebrahim Ghaderpour
In this paper, we introduce some known map projections from a model of the Earth to a flat sheet of paper or map and derive the plotting equations for these projections. The first…