doi:10.1016/j.laa.2026.03.014engBallarín, JorgeDelgado, JorgeLiu, YanxinOrera, HéctorPeña, Juan ManuelAn accurate method for the LU decomposition of amazing matricesART-2026-148843Amazing matrices arise in several important combinatorial problems. In [13], a question was raised concerning how to obtain an LU factorization of these matrices. In this work, we answer this question for the case and introduce a high relative accurate algorithm to compute such a factorization. Numerical experiments are provided to demonstrate the accuracy and effectiveness of the proposed method.2026http://zaguan.unizar.es/record/17029910.1016/j.laa.2026.03.014http://zaguan.unizar.es/record/170299oai:zaguan.unizar.es:170299info:eu-repo/grantAgreement/ES/DGA/E41-23Rinfo:eu-repo/grantAgreement/ES/MCIU/PID2022-138569NB-I00LINEAR ALGEBRA AND ITS APPLICATIONS 740 (2026), 1-10by-nc-ndhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.esinfo:eu-repo/semantics/openAccess