Comment on revised version of "The Hadamard circulant conjecture"

TL;DR

This paper critiques a revised proof claiming to resolve the Hadamard circulant conjecture, demonstrating that the proof is flawed and does not establish the conjecture.

Contribution

It provides a critical analysis showing the revised proof of the Hadamard circulant conjecture is incorrect.

Findings

The revised proof contains errors that invalidate its conclusions.

The conjecture remains unproven after the critique.

The paper clarifies misconceptions in the previous proof attempt.

Abstract

The revised version of the claim by Hurley, Hurley and Hurley to have proved the circulant Hadamard matrix conjecture is mistaken.