Friedrich Hartogs

German mathematician (1874–1943)
Person human Q68545
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Friedrich Hartogs

Summary

Friedrich Hartogs is a human[1]. His place of birth was Brussels[2]. He was born on +1874-05-20T00:00:00Z[3]. He passed away in Munich[4]. He died on +1943-08-18T00:00:00Z[5]. He worked as a mathematician[6] and university teacher[7]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (11 views/month, #7,292 of 1,000,298).[8]

Key Facts

  • Born in Brussels[2], Friedrich Hartogs…
  • Friedrich Hartogs passed away in Munich[4].
  • Friedrich Hartogs was born on +1874-05-20T00:00:00Z[3].
  • Friedrich Hartogs died on +1943-08-18T00:00:00Z[5].
  • Friedrich Hartogs held citizenship in German Reich[9].
  • Friedrich Hartogs is identified as part of the Jewish people ethnic group[10].
  • Friedrich Hartogs worked as a mathematician[6].
  • Friedrich Hartogs worked as a university teacher[7].
  • Friedrich Hartogs's field of work was mathematical analysis[11].
  • Friedrich Hartogs was employed by Ludwig-Maximilians-Universität München[12].
  • Friedrich Hartogs was educated at Wöhlerschule[13].
  • Friedrich Hartogs's education included a stint at Humboldt-Universität zu Berlin[14].
  • Friedrich Hartogs was educated at Ludwig-Maximilians-Universität München[15].
  • Friedrich Hartogs's doctoral advisor was Alfred Pringsheim[16].
  • A notable work attributed to Friedrich Hartogs is Hartogs number[17].
  • A notable work attributed to Friedrich Hartogs is Hartogs' theorem[18].
  • A notable work attributed to Friedrich Hartogs is Hartogs' extension theorem[19].
  • A notable work attributed to Friedrich Hartogs is Q1783223[20].
  • A notable work attributed to Friedrich Hartogs is Hartogs–Rosenthal theorem[21].
  • Friedrich Hartogs's image is recorded as Fritz Hartogs.jpeg[22].
  • Friedrich Hartogs is recorded as male[23].
  • Friedrich Hartogs's instance of is recorded as human[24].
  • Friedrich Hartogs supervised Martin Regensburger as a doctoral student[25].
  • Friedrich Hartogs's ISNI is recorded as 0000000051300653[26].
  • Friedrich Hartogs's VIAF cluster ID is recorded as 35207507[27].

Body

Origins and Family

Friedrich Hartogs's place of birth was Brussels[2]. He was born on +1874-05-20T00:00:00Z[3]. He is identified as part of the Jewish people ethnic group[10].

Education

Educated at Wöhlerschule[13], a school[28], in Germany[29], founded in 1870[30]; Humboldt-Universität zu Berlin[14], a comprehensive university[31], in Germany[32], founded in 1809[33], headquartered in Berlin[34]; and Ludwig-Maximilians-Universität München[15], a public research university[35], in Germany[36], founded in 1472[37], headquartered in Hauptgebäude der Ludwig-Maximilians-Universität München[38]. Friedrich Hartogs's doctoral advisor was Alfred Pringsheim[16].

Career and Affiliations

Recorded occupations include mathematician[6] and university teacher[7]. Friedrich Hartogs's field of work was mathematical analysis[11]. He was employed by Ludwig-Maximilians-Universität München[12]. He supervised Martin Regensburger as a doctoral student[25].

Works and Contributions

Notable works include Hartogs number[17]; Hartogs' theorem[18], a theorem[39]; Hartogs' extension theorem[19], a theorem[40]; Q1783223[20], a theorem[41]; and Hartogs–Rosenthal theorem[21], a theorem[42]. Things named for Friedrich Hartogs include Hartogs' extension theorem[43], a theorem[44]; Hartogs' theorem[45], a theorem[46]; and Hartogs number[47].

Death and Burial

Friedrich Hartogs died on +1943-08-18T00:00:00Z[5]. He died in Munich[4]. The cause of death was intoxication[48].

Why It Matters

Friedrich Hartogs ranks in the top 0.73% of human entities by monthly Wikipedia readership (11 views/month, #7,292 of 1,000,298).[8] He has Wikipedia articles in 9 language editions, a strong signal of global cultural recognition.[49] He is known by 7 alternative names across languages and contexts.[50]

Entities named for him include Hartogs' extension theorem[43], a theorem[44]; Hartogs' theorem[45], a theorem[46]; and Hartogs number[47].

FAQs

Where was Friedrich Hartogs born?

Friedrich Hartogs was born in Brussels[2].

Where did Friedrich Hartogs die?

Friedrich Hartogs passed away in Munich[4].

What did Friedrich Hartogs do for work?

Friedrich Hartogs worked as mathematician[6] and university teacher[7].

Where did Friedrich Hartogs go to school?

Friedrich Hartogs was educated at Wöhlerschule[13], Humboldt-Universität zu Berlin[14], and Ludwig-Maximilians-Universität München[15].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [22] . wikidata.org.
  2. [2] . MacTutor History of Mathematics archive. wikidata.org.
  3. [4] . wikidata.org.
  4. [23] . Integrated Authority File. Retrieved . wikidata.org.
  5. [9] . wikidata.org.
  6. [24] . wikidata.org.
  7. [13] . MacTutor History of Mathematics archive. wikidata.org.
  8. [14] . MacTutor History of Mathematics archive. wikidata.org.
  9. [15] . MacTutor History of Mathematics archive. wikidata.org.
  10. [11] . wikidata.org.
  11. [6] . wikidata.org.
  12. [7] . wikidata.org.
  13. [12] . MacTutor History of Mathematics archive. wikidata.org.
  14. [10] . MacTutor History of Mathematics archive. wikidata.org.
  15. [16] . wikidata.org.
  16. [25] . Mathematics Genealogy Project. wikidata.org.
  17. [26] . wikidata.org.
  18. [27] . wikidata.org.
  19. [48] . wikidata.org.
  20. [3] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  21. [5] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  22. [17] . wikidata.org.
  23. [18] . wikidata.org.
  24. [19] . wikidata.org.
  25. [20] . wikidata.org.
  26. [21] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [43] . wikidata.org. → on this site
  2. [45] . wikidata.org. → on this site
  3. [47] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site
  2. [29] . Wikidata. wikidata.org. → on this site
  3. [30] . Wikidata. wikidata.org. → on this site
  4. [31] . Wikidata. wikidata.org. → on this site
  5. [32] . Wikidata. wikidata.org. → on this site
  6. [33] . Wikidata. wikidata.org. → on this site
  7. [34] . Wikidata. wikidata.org. → on this site
  8. [35] . Wikidata. wikidata.org. → on this site
  9. [36] . Wikidata. wikidata.org. → on this site
  10. [37] . Wikidata. wikidata.org. → on this site
  11. [38] . Wikidata. wikidata.org. → on this site
  12. [39] . Wikidata. wikidata.org. → on this site
  13. [40] . Wikidata. wikidata.org. → on this site
  14. [41] . Wikidata. wikidata.org. → on this site
  15. [42] . Wikidata. wikidata.org. → on this site
  16. [44] . Wikidata. wikidata.org. → on this site
  17. [46] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [8] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [49] . Wikidata sitelinks. wikidata.org.
  3. [50] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Friedrich Hartogs. Retrieved April 10, 2026, from https://4ort.xyz/entity/friedrich-hartogs
MLA “Friedrich Hartogs.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/friedrich-hartogs.
BibTeX @misc{4ortxyz_friedrich-hartogs_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Friedrich Hartogs}}, year = {2026}, url = {https://4ort.xyz/entity/friedrich-hartogs}, note = {Accessed: 2026-04-10}}
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