# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/micha-perles
# Generated: 2026-08-13T06:24:05.291Z

schema: https://schema.org/Person
url: "https://fame.am/person/micha-perles"
name: "Micha Perles"
slug: "micha-perles"
description: "Micha Asher Perles is an Israeli mathematician working in geometry, a professor emeritus at the Hebrew University. He earned his Ph.D. in 1964 from the Hebrew University, under the supervision of Branko Grünbaum.\nHis contributions include:The Perles configuration, a set of nine points in the Euclidean plane whose collinearities can be realized only by using irrational numbers as coordinates. Perles used this configuration to prove the existence of irrational polytopes in higher dimensions.\nThe Perles–Sauer–Shelah lemma, a result in extremal set theory whose proof was credited to Perles by Saharon Shelah.\nThe pumping lemma for context-free languages, a widely used method for proving that a language is not context-free that Perles discovered with Yehoshua Bar-Hillel and Eli Shamir."
tagline: "Israeli mathematician"
gender: "male"
country:
  name: "Israel"
  isoCode: "IL"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1936"
livingStatus: "LIVING"
scores:
  popularity:           42.95
  momentum:             4.66403162055336
  historical:           5.680022666666667
  currentAttention:     0
  sourceConfidence:     35
  profileCompleteness:  55
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://en.wikipedia.org/wiki/Micha_Perles"
    title: "Micha Perles"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D9%85%D9%8A%D8%B4%D8%A7_%D8%A8%D9%8A%D8%B1%D9%84%D8%B2"
    title: "ميشا بيرلز"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Micha_Perles"
    title: "Micha Perles"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Micha_Perles"
    title: "Micha Perles"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Micha_Perles"
    title: "Micha Perles"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%9E%D7%99%D7%9B%D7%94_%D7%A4%D7%A8%D7%9C%D7%A1"
    title: "מיכה פרלס"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q4189617"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump