ウォルター・ゴーチ
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Flury, B. N., & Gautschi, W. (1986). An algorithm for simultaneous orthogonal transformation of several positive definite symmetric matrices to nearly diagonal form. SIAM Journal on Scientific and Statistical Computing, 7(1), 169-184.
Gautschi, W., & Inglese, G. (1987). Lower bounds for the condition number of Vandermonde matrices. en:Numerische Mathematik, 52(3), 241-250.