Almeida, C. G., and S. A. E. Remigio. “Sufficient Conditions for Existence of the LU Factorization of Toeplitz Symmetric Tridiagonal Matrices”. Trends in Computational and Applied Mathematics, vol. 24, no. 1, Mar. 2023, pp. 177-90, doi:10.5540/tcam.2022.024.01.00177.