An improved algorithm for the computation of structural invariants of a system pencil and related geometric aspects

Oara, C;Van Dooren, Paul
(1997) Systems & Control Letters — Vol. 30, n° 1, p. 39-48 (1997)

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  • Oara, C
    Author
  • Van Dooren, PaulUCLouvain
    Author
Abstract
In this paper we propose a new recursive algorithm for computing the staircase form of a matrix pencil, and implicitly its Kronecker structure. The algorithm compares favorably to existing ones in terms of elegance, versatility, and complexity. In particular, the algorithm without any modification yields the structural invariants associated with a generalized state-space system and its system pencil. Two related geometric aspects are also discussed: we show that an appropriate choice of a set of nested spaces related to the pencil leads directly to the staircase form; we extend the notion of deflating subspace to the singular pencil case. (C) 1997 Elsevier Science B.V.
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Oara, C., & Van Dooren, P. (1997). An improved algorithm for the computation of structural invariants of a system pencil and related geometric aspects. Systems & Control Letters, 30(1), 39-48. https://hdl.handle.net/2078.5/43054 (Original work published 1997)