Mathematics (Nov 2022)

Fisher-like Metrics Associated with <i>ϕ</i>-Deformed (Naudts) Entropies

  • Cristina-Liliana Pripoae,
  • Iulia-Elena Hirica,
  • Gabriel-Teodor Pripoae,
  • Vasile Preda

DOI
https://doi.org/10.3390/math10224311
Journal volume & issue
Vol. 10, no. 22
p. 4311

Abstract

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The paper defines and studies new semi-Riemannian generalized Fisher metrics and Fisher-like metrics, associated with entropies and divergences. Examples of seven such families are provided, based on exponential PDFs. The particular case when the basic entropy is a ϕ-deformed one, in the sense of Naudts, is investigated in detail, with emphasis on the variation of the emergent scalar curvatures. Moreover, the paper highlights the impact on these geometries determined by the addition of some group logarithms.

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