A Modified Cholesky Algorithm Based on a Symmetric Indefinite Factorization. - Sheung Hun Cheng; Nicholas J. Higham (SIAM J. Matrix Anal. Appl., 1998)

Parallel Implementation of a Block Algorithm for Matrix 1-Norm Estimation. - Sheung Hun Cheng; Nicholas J. Higham (Euro-Par, 2001)

Approximating the Logarithm of a Matrix to Specified Accuracy. - Sheung Hun Cheng; Nicholas J. Higham; Charles S. Kenney; Alan J. Laub (SIAM J. Matrix Anal. Appl., 2001)