Lothar Collatz

German mathematician (1910–1990)
Person human Q61794
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Lothar Collatz

Summary

Lothar Collatz is a human[1]. Born in Arnsberg[2], he… he passed away in Varna[3]. He worked as a mathematician[4] and university teacher[5]. He ranks in the top 0.72% of human entities by monthly Wikipedia readership (95 views/month, #7,220 of 1,000,298).[6]

Key Facts

  • Born in Arnsberg[2], Lothar Collatz…
  • Lothar Collatz passed away in Varna[3].
  • Lothar Collatz held citizenship in Germany[7].
  • Lothar Collatz's professions included mathematician[4].
  • Lothar Collatz worked as a university teacher[5].
  • Lothar Collatz's field of work was numerical analysis[8].
  • Lothar Collatz's field of work was mathematics[9].
  • Lothar Collatz's field of work was functional analysis[10].
  • Among Lothar Collatz's employers was University of Hamburg[11].
  • Lothar Collatz was employed by Hochschule Hannover[12].
  • Among Lothar Collatz's employers was Frederick William University Berlin[13].
  • Among Lothar Collatz's employers was Karlsruhe University of Applied Sciences[14].
  • Lothar Collatz's education included a stint at Frederick William University Berlin[15].
  • Lothar Collatz was educated at University of Göttingen[16].
  • Lothar Collatz's education included a stint at Ludwig-Maximilians-Universität München[17].
  • Lothar Collatz's education included a stint at University of Greifswald[18].
  • Lothar Collatz was educated at Marienstiftsgymnasium[19].
  • Lothar Collatz's doctoral advisor was Erhard Schmidt[20].
  • Lothar Collatz's doctoral advisor was Alfred Klose[21].
  • Lothar Collatz received the honorary doctor of the Vienna Technical University[22].
  • Lothar Collatz received the honorary doctor of the Dresden University of Technology[23].
  • Lothar Collatz received the honorary doctor of the University of Augsburg[24].
  • Lothar Collatz's image is recorded as Lothar Collatz.jpg[25].
  • Lothar Collatz's image is recorded as Lothar Collatz 1984.jpg[26].
  • Lothar Collatz is recorded as male[27].

Body

Origins and Family

Lothar Collatz was born in Arnsberg[2].

Education

Educated at Frederick William University Berlin[15], a university[28], in Prussia[29], founded in 1828[30]; University of Göttingen[16], a campus university[31], in Germany[32], founded in 1734[33], headquartered in Göttingen[34]; Ludwig-Maximilians-Universität München[17], a public research university[35], in Germany[36], founded in 1472[37], headquartered in Hauptgebäude der Ludwig-Maximilians-Universität München[38]; University of Greifswald[18], a public university[39], in Germany[40], founded in 1456[41]; and Marienstiftsgymnasium[19], a general education liceum[42], in Poland[43], founded in 1946[44]. Doctoral advisors include Erhard Schmidt[20], a mathematician[45], 1876–1959[46], of German Democratic Republic[47], awarded the National Prize of East Germany[48], specialised in functional analysis[49] and Alfred Klose[21], a mathematician[50], 1895–1953[51], of Germany[52].

Career and Affiliations

Recorded occupations include mathematician[4] and university teacher[5]. Fields of work include numerical analysis[8], a branch of mathematics[53]; mathematics[9], an academic discipline[54]; and functional analysis[10], a branch of mathematics[55]. Employers include University of Hamburg[11], a public university[56], in Germany[57], founded in 1919[58], headquartered in Hamburg[59]; Hochschule Hannover[12], a university of applied sciences[60], in Germany[61], founded in 1971[62], headquartered in Hanover[63]; Frederick William University Berlin[13], a university[64], in Prussia[65], founded in 1828[66]; and Karlsruhe University of Applied Sciences[14], a university of applied sciences[67], in Germany[68], founded in 1878[69]. Doctoral students include Frank Natterer[70], Heinz Unger[71], Karl-Peter Hadeler[72], Heinrich Karl Bauersfeld[73], Ludwig Elsner[74], and Johann Schröder[75].

Recognition

Awards received include honorary doctor of the Vienna Technical University[22], an award[76], in Austria[77]; honorary doctor of the Dresden University of Technology[23], an award[78], in Germany[79]; and honorary doctor of the University of Augsburg[24], an award[80], in Germany[81].

Personal Life

Lothar Collatz was affiliated with the Nazi Party[82].

Death and Burial

Lothar Collatz died in Varna[3].

Works and Contributions

Things named for Lothar Collatz include Collatz conjecture[83], a conjecture[84] and Collatz Prize[85], an award[86].

Why It Matters

Lothar Collatz ranks in the top 0.72% of human entities by monthly Wikipedia readership (95 views/month, #7,220 of 1,000,298).[6] He has Wikipedia articles in 17 language editions, a strong signal of global cultural recognition.[87] He is known by 9 alternative names across languages and contexts.[88]

He is credited with the discovery of Collatz conjecture[89], a conjecture[90]. Entities named for him include Collatz conjecture[83], a conjecture[84] and Collatz Prize[85], an award[86].

His notable doctoral advisees include Johann Schröder[91], a mathematician[92], 1925–2007[93], of Germany[94], specialised in mathematics[95] and Burkhard Monien[96], a computer scientist[97], b. 1943[98], of Germany[99], awarded the Gottfried Wilhelm Leibniz Prize[100].

FAQs

Where was Lothar Collatz born?

Born in Arnsberg[2], Lothar Collatz…

Where did Lothar Collatz die?

Lothar Collatz passed away in Varna[3].

What did Lothar Collatz do for work?

Lothar Collatz worked as mathematician[4] and university teacher[5].

Where did Lothar Collatz go to school?

Lothar Collatz was educated at Frederick William University Berlin[15], University of Göttingen[16], Ludwig-Maximilians-Universität München[17], and University of Greifswald[18].

What awards did Lothar Collatz receive?

Honors received include honorary doctor of the Vienna Technical University[22], honorary doctor of the Dresden University of Technology[23], and honorary doctor of the University of Augsburg[24].

What did Lothar Collatz discover?

Lothar Collatz is credited as discoverer of Collatz conjecture[89].

References

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

Direct Wikidata claims

  1. [25] . wikidata.org.
  2. [26] . wikidata.org.
  3. [2] . wikidata.org.
  4. [3] . MacTutor History of Mathematics archive. wikidata.org.
  5. [27] . Integrated Authority File. Retrieved . wikidata.org.
  6. [7] . wikidata.org.
  7. [15] . MacTutor History of Mathematics archive. wikidata.org.
  8. [16] . Retrieved . wikidata.org.
  9. [17] . Retrieved . wikidata.org.
  10. [18] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  11. [19] . wikidata.org.
  12. [8] . MacTutor History of Mathematics archive. wikidata.org.
  13. [9] . Czech National Authority Database. Retrieved . wikidata.org.
  14. [10] . Czech National Authority Database. Retrieved . wikidata.org.
  15. [82] . doi.org. doi.org. Provenance: wikidata.org.
  16. [4] . Czech National Authority Database. Retrieved . wikidata.org.
  17. [5] . wikidata.org.
  18. [11] . MacTutor History of Mathematics archive. wikidata.org.
  19. [12] . MacTutor History of Mathematics archive. wikidata.org.
  20. [13] . Retrieved . wikidata.org.
  21. [14] . books.google.cat. Retrieved . books.google.cat. Provenance: wikidata.org.
  22. [22] . wikidata.org.
  23. [23] . wikidata.org.
  24. [24] . wikidata.org.
  25. [20] . wikidata.org.
  26. [21] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  27. [70] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  28. [71] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  29. [72] . katalogplus.sub.uni-hamburg.de. katalogplus.sub.uni-hamburg.de. Provenance: wikidata.org.
  30. [73] . Mathematics Genealogy Project. wikidata.org.
  31. [74] . Mathematics Genealogy Project. wikidata.org.
  32. [75] . Mathematics Genealogy Project. wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [89] . wikidata.org. → on this site
  2. [91] . wikidata.org. → on this site
  3. [96] . wikidata.org. → on this site
  4. [83] . wikidata.org. → on this site
  5. [85] . 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
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  18. [53] . Wikidata. wikidata.org. → on this site
  19. [54] . Wikidata. wikidata.org. → on this site
  20. [55] . Wikidata. wikidata.org. → on this site
  21. [56] . Wikidata. wikidata.org. → on this site
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  31. [66] . Wikidata. wikidata.org. → on this site
  32. [67] . Wikidata. wikidata.org. → on this site
  33. [68] . Wikidata. wikidata.org. → on this site
  34. [69] . Wikidata. wikidata.org. → on this site
  35. [76] . Wikidata. wikidata.org. → on this site
  36. [77] . Wikidata. wikidata.org. → on this site
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  42. [46] . Wikidata. wikidata.org. → on this site
  43. [47] . Wikidata. wikidata.org. → on this site
  44. [48] . Wikidata. wikidata.org. → on this site
  45. [49] . Wikidata. wikidata.org. → on this site
  46. [50] . Wikidata. wikidata.org. → on this site
  47. [51] . Wikidata. wikidata.org. → on this site
  48. [52] . Wikidata. wikidata.org. → on this site
  49. [90] . Wikidata. wikidata.org. → on this site
  50. [92] . Wikidata. wikidata.org. → on this site
  51. [93] . Wikidata. wikidata.org. → on this site
  52. [94] . Wikidata. wikidata.org. → on this site
  53. [95] . Wikidata. wikidata.org. → on this site
  54. [97] . Wikidata. wikidata.org. → on this site
  55. [98] . Wikidata. wikidata.org. → on this site
  56. [99] . Wikidata. wikidata.org. → on this site
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  58. [84] . Wikidata. wikidata.org. → on this site
  59. [86] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [6] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [87] . Wikidata sitelinks. wikidata.org.
  3. [88] . Wikidata aliases. wikidata.org.

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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). Lothar Collatz. Retrieved April 10, 2026, from https://4ort.xyz/entity/lothar-collatz
MLA “Lothar Collatz.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/lothar-collatz.
BibTeX @misc{4ortxyz_lothar-collatz_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Lothar Collatz}}, year = {2026}, url = {https://4ort.xyz/entity/lothar-collatz}, note = {Accessed: 2026-04-10}}
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