Regular complex Hadamard matrices of order 7,8

Paper (PDF and LaTeX source) and associated computational code. We review the general theory of regular complex Hadamard matrices, including the known classification at order 6, and develop classification results at orders 7 and 8. The repository contains exact computational procedures, verification scripts, and supporting data.

Authors

Teodor Banica (ORCID: https://orcid.org/0000-0003-4680-0364)
GPT

Institutions

CY Cergy Paris Université (FR)

Publication Details

Journal: Zenodo (CERN European Organization for Nuclear Research)
Published: 2026-11-04
DOI: https://doi.org/10.5281/zenodo.23934848
Primary Topic: Coding theory and cryptography
Type: preprint

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preprint

Regular complex Hadamard matrices of order 7,8

Teodor Banica, GPT

Nov 4, 2026

Zenodo (CERN European Organization for Nuclear Research)

Coding theory and cryptography

preprint

Regular complex Hadamard matrices of order 7,8

Teodor Banica, GPT

November 4, 2026preprint en

Abstract

Zenodo (CERN European Organization for Nuclear Research)

CY Cergy Paris Université (FR)

Coding theory and cryptography

DOI Open Access PDF OpenAlex

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Regular complex Hadamard matrices of order 7,8 — Teodor Banica, GPT · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS