The exponential map of GL( N)

  title={The exponential map of GL( N)},
  author={A. Laufer},
  journal={Journal of Physics A},
  • A. Laufer
  • Published 1997
  • Mathematics, Physics
  • Journal of Physics A
A finite expansion of the exponential map for a matrix is presented. The method uses the Cayley - Hamilton theorem for writing the higher matrix powers in terms of those for the first N - 1. The resulting sums over the corresponding coefficients are rational functions of the eigenvalues of the matrix. 
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