ニコラス・ハイアム
Computing the polar decomposition—with applications, NJ Higham - SIAM Journal on Scientific and Statistical Computing, 1986
Computing real square roots of a real matrix, NJ Higham - Linear Algebra and its Applications, 1987.
Computing a nearest symmetric positive semidefinite matrix, NJ Higham - Linear algebra and its applications, 1988.
FORTRAN codes for estimating the one-norm of a real or complex matrix, with applications to condition estimation, NJ Higham - ACM Transactions on Mathematical Software (TOMS), 1988.