The Eigenvalue Method in Coding Theory

Fuente: arXiv
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Main Authors: Abiad, Aida, Peters, Loes, Ravagnani, Alberto
Format: Preprint
Published: 2025
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author Abiad, Aida
Peters, Loes
Ravagnani, Alberto
author_facet Abiad, Aida
Peters, Loes
Ravagnani, Alberto
contents We lay down the foundations of the Eigenvalue Method in coding theory. The method uses modern algebraic graph theory to derive upper bounds on the size of error-correcting codes for various metrics, addressing major open questions in the field. We identify the core assumptions that allow applying the Eigenvalue Method, test it for multiple well-known classes of error-correcting codes, and compare the results with the best bounds currently available. By applying the Eigenvalue Method, we obtain new bounds on the size of error-correcting codes that often improve the state of the art. Our results show that spectral graph theory techniques capture structural properties of error-correcting codes that are missed by classical coding theory approaches.
format Preprint
id arxiv_https___arxiv_org_abs_2509_08917
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Eigenvalue Method in Coding Theory
Abiad, Aida
Peters, Loes
Ravagnani, Alberto
Combinatorics
Information Theory
We lay down the foundations of the Eigenvalue Method in coding theory. The method uses modern algebraic graph theory to derive upper bounds on the size of error-correcting codes for various metrics, addressing major open questions in the field. We identify the core assumptions that allow applying the Eigenvalue Method, test it for multiple well-known classes of error-correcting codes, and compare the results with the best bounds currently available. By applying the Eigenvalue Method, we obtain new bounds on the size of error-correcting codes that often improve the state of the art. Our results show that spectral graph theory techniques capture structural properties of error-correcting codes that are missed by classical coding theory approaches.
title The Eigenvalue Method in Coding Theory
topic Combinatorics
Information Theory
url https://arxiv.org/abs/2509.08917