# Proof of the circulant Hadamard conjecture

## TL;DR

This paper proves the longstanding circulant Hadamard conjecture, confirming that no circulant Hadamard matrices exist beyond known cases, thus resolving a major open problem in combinatorial design theory.

## Contribution

The paper provides a complete proof of the circulant Hadamard conjecture, establishing its validity and closing a significant gap in mathematical knowledge.

## Key findings

- Proof confirms no new circulant Hadamard matrices exist
- Establishes the conjecture as true for all cases
- Closes open problem in combinatorial design theory

## Abstract

In this paper the circulant Hadamard conjecture is proved.