Kleinian

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Of or pertaining to Christian Felix Klein (1849–1925), German mathematician.

    "Prove that if a Kleinian group G does not contain parabolic elements and is isomorphic to the fundamental group of a closed orientable surface, then G is either quasi-Fuchsian or degenerate[…]"

  2. 2
    Of or pertaining to Melanie Reizes Klein (1882–1960), Austrian-born British psychoanalyst who devised novel therapeutic techniques for children.

    "The second three months of life, the critical era in the Kleinian narrative, are marked by a shift from the paranoid to the "depressive" position produced by the infant's growing ability to integrate contradictory perceptions."

Example

More examples

"Prove that if a Kleinian group G does not contain parabolic elements and is isomorphic to the fundamental group of a closed orientable surface, then G is either quasi-Fuchsian or degenerate[…]"

Etymology

From Klein + -ian.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.