Max Dehn

German-American mathematician (1878-1952)
Person human Q61732
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Summary

Max Dehn was born on November 13, 1878[1], in Hamburg[2]. He died on June 27, 1952[3], in Black Mountain[4]. He worked as a mathematician[5], historian of mathematics[6], topologist[7], and university teacher[8]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (418 views/month, #7,280 of 1,000,298).[9]

Key Facts

  • Place of burial: Black Mountain College[10]
  • Father: Dr. med. Maximilian Moses Dehn[11]
  • Spouse: Toni Dehn[12]
  • Country of citizenship: Germany[13], United States[14]
  • Ethnic group: Jewish people[15]
  • Field of work: group theory[16], topology[17], mathematics[18], geometry[19]
  • Employer: Goethe University Frankfurt[20], University of Münster[21], Illinois Institute of Technology[22], Kiel University[23], University of Wrocław[24], Norwegian Institute of Technology[25], Black Mountain College[26]
  • Educated at: University of Göttingen[27]
  • Doctoral advisor: David Hilbert[28]
  • Notable work: Dehn invariant[29], Dehn twist[30], Dehn's lemma[31], Dehn surgery[32], Dehn function[33], hyperbolic Dehn surgery[34], Dehn–Sommerville equations[35]
  • Sex or gender: male[36]
  • Doctoral student: Ruth Moufang[37], Ott-Heinrich Keller[38], Wilhelm Magnus[39], Jakob Nielsen[40], Joseph Henry Engel[41], Herbert Fuss[42], Wilhelm Friedrich Schwan[43], Walter Wagner[44], Max Frommer[45]
  • Commons category: Max Dehn[46]
  • Family name: Dehn[47]
  • Given name: Max[48], Wilhelm[49]
  • Work location: Kiel[50], Frankfurt[51]
  • Academic thesis: Q83555429[52]
  • Described by source: Hamburg Biographies[53]
  • Languages spoken, written or signed: German[54]
  • Name in native language: Max Wilhelm Dehn[55]

Body

Works and Contributions

Things named for Max Dehn include Dehn invariant[56], a mathematical concept[57] and Dehn's lemma[58], a theorem[59].

Why It Matters

Max Dehn has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[60] He is known by 18 alternative names across languages and contexts.[61]

Entities named for him include Dehn invariant[56], a mathematical concept[57] and Dehn's lemma[58], a theorem[59].

His notable doctoral advisees include Wilhelm Magnus[62], a mathematician[63], 1907–1990[64], of Germany[65], awarded the Guggenheim Fellowship[66], specialised in group theory[67]; Ott-Heinrich Keller[68], a mathematician[69], 1906–1990[70], of Germany[71], awarded the National Prize of East Germany[72], specialised in geometry[73]; Ruth Moufang[74], a mathematician[75], 1905–1977[76], of Germany[77], specialised in algebra[78]; and Jakob Nielsen[79], a mathematician[80], 1890–1959[81], of Kingdom of Denmark[82], specialised in topology[83].

FAQs

Where was Max Dehn born?

Max Dehn's place of birth was Hamburg[2].

Where did Max Dehn die?

Max Dehn died in Black Mountain[4].

Who were Max Dehn's parents?

Max Dehn's father was Dr. med. Maximilian Moses Dehn[11].

Who was Max Dehn married to?

Max Dehn's spouses include Toni Dehn[12].

What did Max Dehn do for work?

Max Dehn worked as a mathematician[5], historian of mathematics[6], topologist[7], and university teacher[8].

Where did Max Dehn go to school?

Max Dehn was educated at University of Göttingen[27].

References

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

Direct Wikidata claims

  1. [2] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [36] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  4. [11] ↑ . Geni.com. wikidata.org.
  5. [12] ↑ . wikidata.org.
  6. [13] ↑ . wikidata.org.
  7. [14] ↑ . wikidata.org.
  8. [27] ↑ . wikidata.org.
  9. [16] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  10. [17] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  11. [18] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  12. [19] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  13. [5] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  14. [6] ↑ . wikidata.org.
  15. [7] ↑ . wikidata.org.
  16. [8] ↑ . wikidata.org.
  17. [20] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  18. [21] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  19. [22] ↑ . wikidata.org.
  20. [23] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  21. [24] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  22. [25] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  23. [26] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  24. [10] ↑ . radiosefarad.com. radiosefarad.com. Provenance: wikidata.org.
  25. [15] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  26. [28] ↑ . wikidata.org.
  27. [37] ↑ . Mathematics Genealogy Project. wikidata.org.
  28. [38] ↑ . Mathematics Genealogy Project. wikidata.org.
  29. [39] ↑ . Mathematics Genealogy Project. wikidata.org.
  30. [40] ↑ . Mathematics Genealogy Project. wikidata.org.
  31. [41] ↑ . Mathematics Genealogy Project. wikidata.org.
  32. [42] ↑ . Mathematics Genealogy Project. wikidata.org.
  33. [43] ↑ . Mathematics Genealogy Project. wikidata.org.
  34. [44] ↑ . Mathematics Genealogy Project. wikidata.org.
  35. [45] ↑ . Mathematics Genealogy Project. wikidata.org.
  36. [46] ↑ . wikidata.org.
  37. [1] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  38. [3] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  39. [47] ↑ . wikidata.org.
  40. [48] ↑ . wikidata.org.
  41. [49] ↑ . wikidata.org.
  42. [29] ↑ . wikidata.org.
  43. [30] ↑ . wikidata.org.
  44. [31] ↑ . wikidata.org.
  45. [32] ↑ . wikidata.org.
  46. [33] ↑ . wikidata.org.
  47. [34] ↑ . wikidata.org.
  48. [35] ↑ . wikidata.org.
  49. [50] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  50. [51] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  51. [52] ↑ . Mathematics Genealogy Project. wikidata.org.
  52. [53] ↑ . wikidata.org.
  53. [54] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  54. [55] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [62] ↑ . wikidata.org. → on this site
  2. [68] ↑ . wikidata.org. → on this site
  3. [74] ↑ . wikidata.org. → on this site
  4. [79] ↑ . wikidata.org. → on this site
  5. [56] ↑ . wikidata.org. → on this site
  6. [58] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [63] ↑ . Wikidata. wikidata.org. → on this site
  2. [64] ↑ . Wikidata. wikidata.org. → on this site
  3. [65] ↑ . Wikidata. wikidata.org. → on this site
  4. [66] ↑ . Wikidata. wikidata.org. → on this site
  5. [67] ↑ . Wikidata. wikidata.org. → on this site
  6. [69] ↑ . Wikidata. wikidata.org. → on this site
  7. [70] ↑ . Wikidata. wikidata.org. → on this site
  8. [71] ↑ . Wikidata. wikidata.org. → on this site
  9. [72] ↑ . Wikidata. wikidata.org. → on this site
  10. [73] ↑ . Wikidata. wikidata.org. → on this site
  11. [75] ↑ . Wikidata. wikidata.org. → on this site
  12. [76] ↑ . Wikidata. wikidata.org. → on this site
  13. [77] ↑ . Wikidata. wikidata.org. → on this site
  14. [78] ↑ . Wikidata. wikidata.org. → on this site
  15. [80] ↑ . Wikidata. wikidata.org. → on this site
  16. [81] ↑ . Wikidata. wikidata.org. → on this site
  17. [82] ↑ . Wikidata. wikidata.org. → on this site
  18. [83] ↑ . Wikidata. wikidata.org. → on this site
  19. [57] ↑ . Wikidata. wikidata.org. → on this site
  20. [59] ↑ . Wikidata. wikidata.org. → on this site

Aggregate / graph-position facts

  1. [9] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [60] ↑ . Wikidata sitelinks. wikidata.org.
  3. [61] ↑ . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Max Dehn. Retrieved October 17, 2026, from https://4ort.xyz/entity/max-dehn
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 20h ago · OKA bot bot · 2026-10-17 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'arz', 'az', 'azb', 'ca', 'commons', 'cs', 'de', 'en', 'es', 'fa', 'fr',
    Claims rich → —
    "/* wbeditentity-statements-multiple-properties-update:0||3 */ source for place of birth, source for date of birth, source for date of death from Store norske leksikon ([[Wikidata:Requests for permissi"
  2. 4w ago · Printstream · 2026-09-15 view diff on Wikidata ↗
    Hessian biography person (gnd) id → 6374
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/54302|batch #54302]]: migrate GND to own IDs"
  3. 10w ago · Krateven · 2026-08-03 view diff on Wikidata ↗
    Jewish encyclopedia id (russian) → 11399
    "/* wbsetclaim-create:2||1 */ Jewish encyclopedia id (russian): 11399"
  4. 21w ago · Epìdosis · 2026-05-21 view diff on Wikidata ↗
    Employer → Goethe University Frankfurt, University of Münster, Illinois Institute of Technology +4
    Described by source → Hamburg Biographies
    Family name → Dehn
    Maintained by wikiproject → WikiProject Mathematics
    + 27 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32119|batch #32119]]: import P21 and P106 from GND (32)"
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