Conditioning of the Exponential of a Block Triangular Matrix

@article{Dieci2001ConditioningOT,
  title={Conditioning of the Exponential of a Block Triangular Matrix},
  author={Luca Dieci and Alessandra Papini},
  journal={Numerical Algorithms},
  year={2001},
  volume={28},
  pages={137-150}
}
We propose a new measure of conditioning for the exponential of a block triangular matrix. We also show that different “condition numbers” must be used to assess the accuracy of different algorithms which implement diagonal Padé with scaling and squaring. 

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