Cauchy horizon

noun

A lightlike boundary of the domain of validity of a Cauchy problem, in which one side of the horizon contains closed space-like geodesics and the other side contains closed timelike geodesics.

Meanings

nounCauchy horizon (plural Cauchy horizons)

plural Cauchy horizons

  1. natural sciencesA lightlike boundary of the domain of validity of a Cauchy problem, in which one side of the horizon contains closed space-like geodesics and the other side contains closed timelike geodesics.

Origin

Named after Augustin-Louis Cauchy

Full word history & related roots →

Translations

Polish horyzont Cauchy'ego
  • horyzont Cauchy'egoboundary of the domain of validity
Cite this entry
APA

Cauchy horizon. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Cauchy%20horizon

MLA

“Cauchy horizon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Cauchy%20horizon. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Cauchy horizon,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Cauchy%20horizon.

Source: Cauchy horizon on Wiktionary, CC BY-SA 4.0.