Summary
In Gauger and Byrnes [10], a characterization of the similarity of two n ×n matrices in terms of rank conditions was given. This avoids the use of companion or Jordan canonical forms and yields effective decidability criteria for similarity. In this paper, we generalize this result to an explicit characterization when two polynomial models are isomorphic. As a corollary, we derive necessary and sufficient rank conditions for strict equivalence of arbitrary matrix pencils. We also briefly discuss the related equivalence problem for group representations. The techniques we use are based on the tensor products of polynomial models and related characterizations of intertwining maps.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Dixon, J.D.: An isomorphism criterion for modules over a principal ideal domain. Lin. and Multilin. Alg., 8, 69–72
Edelman, A., Elmroth, E., Kagström, B.: A Geometric Approach to Perturbation Theory of Matrices and Matrix Pencils. Part I: Versal Deformations. SIAM J. Matrix Anal. Appl., 18(3), 653–692
Frobenius, G.: Über die mit einer Matrix vertauschbaren Matrizen. Sitzungsberichte der Akad. der Wiss. zu Berlin
Fuhrmann, P.A.: Algebraic system theory: An analyst’s point of view. J. Franklin Inst. 301, 521–540
Fuhrmann, P.A.: A Polynomial Approach to Linear Algebra. Springer, New York (1996)
Fuhrmann, P.A., Helmke, U.: Tensored polynomial models. Lin. Alg. Appl., 432, 678–721
Friedland, S.: Analytic similarity of matrices. In: Byrnes, C.I., Martin, C.F. (eds.) Algebraic and Geometric Methods in Linear Systems Theory. Lectures in Applied Math. Amer. Math. Soc, vol. 18, pp. 43–85 (1980)
Friedland, S.: Matrices. A book draft in preparation, http://www2.math.uic.edu/~friedlan/bookm.pdf
Gantmacher, F.R.: The Theory of Matrices, vols. I/II, Chelsea Publishing Company, New York
Gauger, M.A., Byrnes, C.I.: Characteristic free, improved decidability criteria for the similarity problem. Linear and Multilinear Algebra, 5, 153–158
Hungerford, T.W.: Algebra. Springer, New York (2003)
Jacobson, N.: Lie Algebras. Wiley, New York
Krull, W.: Theorie und Anwendung der verallgemeinerten Abelschen Gruppen. Sitzungsberichte der Heidelberger Akad. Wiss. Math.-Naturw. Kl.1 Abh., 1–32
Shoda, K.: Über mit einer Matrix vertauschbaren Matrizen. Math. Z. 29, 696–712
Vinberg, E.B.: Linear Representations of Groups. Birkhäuser Verlag, Basel
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer Berlin Heidelberg
About this chapter
Cite this chapter
Fuhrmann, P.A., Helmke, U. (2010). Unimodular Equivalence of Polynomial Matrices. In: Hu, X., Jonsson, U., Wahlberg, B., Ghosh, B. (eds) Three Decades of Progress in Control Sciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-11278-2_12
Download citation
DOI: https://doi.org/10.1007/978-3-642-11278-2_12
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-11277-5
Online ISBN: 978-3-642-11278-2
eBook Packages: EngineeringEngineering (R0)