# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/gerhard-ringel
# Generated: 2026-08-12T18:01:09.426Z

schema: https://schema.org/Person
url: "https://fame.am/person/gerhard-ringel"
name: "Gerhard Ringel"
slug: "gerhard-ringel"
description: "Gerhard Ringel was a German mathematician. He was one of the pioneers in graph theory and contributed significantly to the proof of the Heawood conjecture, a mathematical problem closely linked with the four color theorem."
tagline: "German-American mathematician (1919–2008)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Gerhard_Ringel_surfing.jpg?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1919-10-28"
deathDate: "2008-06-24"
livingStatus: "DECEASED"
scores:
  popularity:           38.87
  momentum:             0
  historical:           7.871922666666666
  currentAttention:     0
  sourceConfidence:     50.00000000000001
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://ru.wikipedia.org/wiki/%D0%A0%D0%B8%D0%BD%D0%B3%D0%B5%D0%BB%D1%8C%2C_%D0%93%D0%B5%D1%80%D1%85%D0%B0%D1%80%D0%B4"
    title: "Рингель, Герхард"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%AC%D9%8A%D8%B1%D9%87%D8%A7%D8%B1%D8%AF_%D8%B1%D9%8A%D9%86%D8%AC%D9%84"
    title: "جيرهارد رينجل"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Gerhard_Ringel"
    title: "Gerhard Ringel"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Gerhard_Ringel"
    title: "Gerhard Ringel"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Gerhard_Ringel"
    title: "Gerhard Ringel"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Gerhard_Ringel"
    title: "Gerhard Ringel"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Gerhard_Ringel"
    title: "Gerhard Ringel"
    type:  "WIKIPEDIA"
  - url: "https://ht.wikipedia.org/wiki/Gerhard_Ringel"
    title: "Gerhard Ringel"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Gerhard_Ringel"
    title: "Gerhard Ringel"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q113731"
    title: "Wikidata"
    type:  "WIKIDATA"

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