Factorizations of Cauchy matrices
A matrix \(C\) with entries \(c_{ij}= (x_i- y_j)^{-1}\) is said to be a Cauchy matrix. The LU-factorization with appropriate pivoting is discussed. The size of the matrix elements in the resulting upper triangular matrices is illustrated in 12 figures, for 12 typical situations.
scientific article; zbMATH DE number 1115927
scientific article