ニコラス・ハイアム
Challenges in Multivalued Matrix Functions (PDF)
Functions of a Matrix: Theory, Applications and Computation (PDF)
Matrix Functions and their Sensitivity (PDF)
The Matrix Logarithm: from Theory to Computation (PDF)
The accuracy of floating point summation, NJ Higham - en:SIAM Journal on Scientific Computing, 1993.
Stable iterations for the matrix square root, NJ Higham - Numerical Algorithms, 1997.