作者: U. Helmke , J. Rosenthal , X. Wang
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摘要: This paper studies the problem of pole assignment for symmetric and Hamiltonian transfer functions. A necessary sufficient condition by complex output feedback transformations is given. Moreover, in case where McMillan degree coincides with number parameters appearing transformations, we derive an explicit combinatorial formula assigning gains. The proof uses intersection theory projective space as well a Lagrangian Grassmann manifold.