@InProceedings{dorsi_et_al:LIPIcs.CCC.2023.27, author = {d'Orsi, Tommaso and Trevisan, Luca}, title = {{A Ihara-Bass Formula for Non-Boolean Matrices and Strong Refutations of Random CSPs}}, booktitle = {38th Computational Complexity Conference (CCC 2023)}, pages = {27:1--27:16}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-282-2}, ISSN = {1868-8969}, year = {2023}, volume = {264}, editor = {Ta-Shma, Amnon}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CCC.2023.27}, URN = {urn:nbn:de:0030-drops-182979}, doi = {10.4230/LIPIcs.CCC.2023.27}, annote = {Keywords: CSP, k-XOR, strong refutation, sum-of-squares, tensor, graph, hypergraph, non-backtracking walk} }