矩阵方程A1X1B1+A2X2B2+…+AlXlBl=C的中心对称解及其最佳逼近
구진방정A1X1B1+A2X2B2+…+AlXlBl=C적중심대칭해급기최가핍근
The Centrosymmetric Solutions of Matrix Equation A1X1B1 +A2X2B2 +…AlXlBl = C and its Optimal Approximation
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