# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/donald-samuel-ornstein
# Generated: 2026-08-14T19:01:55.591Z

schema: https://schema.org/Person
url: "https://fame.am/person/donald-samuel-ornstein"
name: "Donald Samuel Ornstein"
slug: "donald-samuel-ornstein"
description: "Donald Samuel Ornstein is an American mathematician working in the area of ergodic theory. He received a Ph.D. from the University of Chicago in 1957 under the guidance of Irving Kaplansky. During his career at Stanford University he supervised the Ph. D. thesis of twenty three students, including David H. Bailey, Bob Burton, Doug Lind, Ami Radunskaya, Dan Rudolph, and Jeff Steif."
tagline: "American mathematician"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Donald_Ornstein.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: "1934-07-30"
livingStatus: "LIVING"
scores:
  popularity:           37.52
  momentum:             0
  historical:           5.471706666666667
  currentAttention:     0
  sourceConfidence:     40
  profileCompleteness:  75
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
platforms:
  - platform:  "WEBSITE"
    url:       "https://profiles.stanford.edu/donald-ornstein"
sources:
  - url: "https://en.wikipedia.org/wiki/Donald_Samuel_Ornstein"
    title: "Donald Samuel Ornstein"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%AF%D9%88%D9%86%D8%A7%D9%84%D8%AF_%D8%B5%D9%85%D9%88%D8%A6%D9%8A%D9%84_%D8%A7%D9%88%D8%B1%D9%86%D8%B3%D8%AA%D9%8A%D9%86"
    title: "دونالد صموئيل اورنستين"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Donald_Samuel_Ornstein"
    title: "Donald Samuel Ornstein"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Donald_Samuel_Ornstein"
    title: "Donald Samuel Ornstein"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Donald_Ornstein"
    title: "Donald Ornstein"
    type:  "WIKIPEDIA"
  - url: "https://ht.wikipedia.org/wiki/Donald_Samuel_Ornstein"
    title: "Donald Samuel Ornstein"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q441210"
    title: "Wikidata"
    type:  "WIKIDATA"

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