OAI/GroupTheory/PolycyclicRecognition/Geometry/InvertibleJordanDecomposition.lean

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The multiplicative decomposition needed for a real matrix logarithm

The additive Jordan decomposition of an invertible operator gives a commuting semisimple unit and a unipotent factor. Both factors are constructed here.

  1. theorem OAI.PolycyclicRecognition.invertible_jordan_decomposition_centralizer line 17
  2. theorem OAI.PolycyclicRecognition.invertible_jordan_decomposition line 59