2004
DOI: 10.1137/s0363012999354429
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Pole Placement and Matrix Extension Problems: A Common Point of View

Abstract: Abstract. This paper studies a general inverse eigenvalue problem which generalizes many wellstudied pole placement and matrix extension problems. It is shown that the problem corresponds geometrically to a so-called central projection from some projective variety. The degree of this variety represents the number of solutions the inverse problem has in the critical dimension. We are able to compute this degree in many instances, and we provide upper bounds in the general situation.Key words. pole placement and… Show more

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Cited by 13 publications
(8 citation statements)
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“…under what conditions a symmetric transfer function is nondegenerate. Similar results were crucial in proving the pole placement results in [3,19,27]. Consider now the coincidence set…”
Section: Resultssupporting
confidence: 61%
See 1 more Smart Citation
“…under what conditions a symmetric transfer function is nondegenerate. Similar results were crucial in proving the pole placement results in [3,19,27]. Consider now the coincidence set…”
Section: Resultssupporting
confidence: 61%
“…Following [19,26,27,35] we identify a closed loop characteristic polynomial ϕ(s) with a point in P δ . In analogy to the situation of the static pole placement problem considered in [3,35] (compare also with [27, Section 5]) one has a well defined characteristic map (3.9) in the Hamiltonian case.…”
Section: Resultsmentioning
confidence: 99%
“…Our first class of test problems has its origin in the output pole placement problem in the control of linear systems. We may view this problem as an inverse eigenvalue problem [24]. The polynomial equations arise from minor expansions on det(A|X) = 0, A ∈ C n×m ,…”
Section: Matrix Completion With Pieri Homotopiesmentioning
confidence: 99%
“…In the field of controls, algorithms have also been proposed for the related, socalled pole placement problems [14,18,25,36], which arise from the need for the stabilization of dynamic systems. Such pole placement problems are typically of the form: given the state space matrices A∈R n , B∈R n×m , find the static output feedback matrix K∈R m such that spectrum of A + BKB T lies in some desired, closed convex sets, [35] the following problem is considered: the location of a complex conjugate pair of eigenvalues in the left half plane is specified, C 1 ={c}, C 2 ={c}, while requiring the remaining eigenvalues to lie within some convex domain C 3 = · · · = C n = C. For solving such problems, iterative algorithms based on alternating projection have been developed [35].…”
Section: Matrix Inverse Eigenvalue Problemmentioning
confidence: 99%