Eccentricity (mathematics) - Analogous Classifications

Analogous Classifications

A number of classifications in mathematics use derived terminology from the classification of conic sections by eccentricity:

  • Classification of elements of SL2(R) as elliptic, parabolic, and hyperbolic – and similarly for classification of elements of PSL2(R), the real Möbius transformations.
  • Classification of discrete distributions by variance-to-mean ratio; see cumulants of some discrete probability distributions for details.

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