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» Computing Minimal Polynomials of Matrices
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CORR
2007
Springer
74views Education» more  CORR 2007»
13 years 8 months ago
Computing Minimal Polynomials of Matrices
We present and analyse a Monte-Carlo algorithm to compute the minimal polynomial of an n × n matrix over a finite field that requires O(n3 ) field operations and O(n) random v...
Max Neunhöffer, Cheryl E. Praeger
ISSAC
2009
Springer
150views Mathematics» more  ISSAC 2009»
14 years 3 months ago
On finding multiplicities of characteristic polynomial factors of black-box matrices
We present algorithms and heuristics to compute the characteristic polynomial of a matrix given its minimal polynomial. The matrix is represented as a black-box, i.e., by a functi...
Jean-Guillaume Dumas, Clément Pernet, B. Da...
ISSAC
2005
Springer
105views Mathematics» more  ISSAC 2005»
14 years 2 months ago
Computing the rank and a small nullspace basis of a polynomial matrix
We reduce the problem of computing the rank and a nullspace basis of a univariate polynomial matrix to polynomial matrix multiplication. For an input n×n matrix of degree d over ...
Arne Storjohann, Gilles Villard
DATE
2002
IEEE
87views Hardware» more  DATE 2002»
14 years 1 months ago
Model Reduction in the Time-Domain Using Laguerre Polynomials and Krylov Methods
We present a new passive model reduction algorithm based on the Laguerre expansion of the time response of interconnect networks. We derive expressions for the Laguerre coefficie...
Yiran Chen, Venkataramanan Balakrishnan, Cheng-Kok...
TCS
2008
13 years 8 months ago
Computations with quasiseparable polynomials and matrices
In this paper we survey several recent results that highlight an interplay between a relatively new class of quasiseparable matrices and polynomials. Quasiseparable matrices gener...
Tom Bella, Yuli Eidelman, Israel Gohberg, Vadim Ol...