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math.CO2019
Proof of the circulant Hadamard conjecture
Ronald Orozco López
In this paper the circulant Hadamard conjecture is proved.
math.CO2018
Schur Ring, Run Structure and Periodic Compatible Binary Sequences
Ronald Orozco López
In this paper three Schur ring are discussed, namenly: Hamming, circulant orbists and decimated circulant orbits Schur ring. By using autocorrelation function and the run structure…
math.CO2018
An Approximation to Proof of the Circulant Hadamard Conjecture
Ronald Orozco López
Turyn prove that if a circulant Hadamard matrix of order exists then must be of the form for some odd integer . In this paper we use the structure constant of…
math.CO2018
Schur Ring over Group , Circulant Sets Invariant by Decimation and Hadamard Matrices
Ronald Orozco López
In this paper a variety of issues are discussed, Schur ring, -sets, circulant orbits, decimation operator and Hadamard matrices and their relation between them is shown. Firstly…