The Optimal Approximation Problem of Anti-Hermitian Generalized Anti-Hamiltonian Matrices Under the Linear Constraint
Lei Zhang · Gongcheng shuxue xuebao · 2004
The optimal approximation problem of anti-Hermitian generalized anti-Hamiltionan matrices under linear constraint is discussed. The necessary and sufficient conditions for constraint matrices set SA ≠φis provd, and the expression of the element of SA is given. For any n-by-n complex matrix A, It's optimal approximation matrix A is obtained.