AUTHOR=Drysdale Catherine , Johnson Samuel TITLE=The connection between non-normality and trophic coherence in directed graphs JOURNAL=Frontiers in Applied Mathematics and Statistics VOLUME=10 YEAR=2025 URL=https://www.frontiersin.org/journals/applied-mathematics-and-statistics/articles/10.3389/fams.2024.1512865 DOI=10.3389/fams.2024.1512865 ISSN=2297-4687