Julius Petersen

Danish mathematician (1839-1910)
Person human Q455001
Julius Petersen
Jens Petersen · Public Domain · Wikimedia
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Julius Petersen

Summary

Julius Petersen is a human[1]. His place of birth was Sorø[2]. He was born on +1839-06-16T00:00:00Z[3]. He passed away in Copenhagen[4]. He died on +1910-08-05T00:00:00Z[5]. He worked as a mathematician[6], university teacher[7], and scientist[8]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (24 views/month, #7,287 of 1,000,298).[9]

Key Facts

  • Born in Sorø[2], Julius Petersen…
  • Julius Petersen passed away in Copenhagen[4].
  • Julius Petersen was born on +1839-06-16T00:00:00Z[3].
  • Julius Petersen died on +1910-08-05T00:00:00Z[5].
  • Burial took place at Vestre Cemetery[10].
  • Julius Petersen held citizenship in Kingdom of Denmark[11].
  • Julius Petersen's professions included mathematician[6].
  • Julius Petersen's professions included university teacher[7].
  • Julius Petersen's professions included scientist[8].
  • Julius Petersen's field of work was graph theory[12].
  • Julius Petersen's field of work was mathematics[13].
  • Julius Petersen's field of work was geometry[14].
  • Julius Petersen's field of work was trigonometry[15].
  • Julius Petersen's field of work was algebra[16].
  • Julius Petersen's field of work was algebraic equation[17].
  • Among Julius Petersen's employers was University of Copenhagen[18].
  • Among Julius Petersen's employers was Den Polytekniske Læreanstalt[19].
  • Among Julius Petersen's employers was Q12308529[20].
  • Julius Petersen's education included a stint at University of Copenhagen[21].
  • Julius Petersen's education included a stint at Technical University of Denmark[22].
  • Julius Petersen's education included a stint at Sorø Academy[23].
  • A notable work attributed to Julius Petersen is Petersen graph[24].
  • A notable work attributed to Julius Petersen is Petersen's theorem[25].
  • A notable work attributed to Julius Petersen is 2-factor theorem[26].
  • A notable work attributed to Julius Petersen is Die Theorie der regulären graphs[27].

Body

Origins and Family

Julius Petersen's place of birth was Sorø[2]. He was born on +1839-06-16T00:00:00Z[3].

Education

Educated at University of Copenhagen[21], a public research university[28], in Denmark[29], founded in 1479[30]; Technical University of Denmark[22], an institute of technology[31], in Denmark[32], founded in 1829[33], headquartered in Kongens Lyngby[34]; and Sorø Academy[23], a manor house[35], in Denmark[36], founded in 1625[37].

Career and Affiliations

Recorded occupations include mathematician[6], university teacher[7], and scientist[8]. Fields of work include graph theory[12], an academic discipline[38]; mathematics[13], an academic discipline[39]; geometry[14], a branch of mathematics[40]; trigonometry[15], a branch of mathematics[41]; algebra[16], a branch of mathematics[42]; and algebraic equation[17]. Employers include University of Copenhagen[18], a public research university[43], in Denmark[44], founded in 1479[45]; Den Polytekniske Læreanstalt[19], a university[46], in Denmark[47], founded in 1829[48], headquartered in Lyngby-Taarbæk Municipality[49]; and Q12308529[20], an educational institution[50], in Denmark[51], founded in 1799[52].

Works and Contributions

Notable works include Petersen graph[24], an undirected graph[53]; Petersen's theorem[25], a theorem[54]; 2-factor theorem[26], a theorem[55]; and Die Theorie der regulären graphs[27]. Things named for Julius Petersen include Petersen graph[56], an undirected graph[57] and Petersen's theorem[58], a theorem[59].

Recognition

Awards received include Q106076863[60]; Knight of the Order of the Dannebrog[61], a grade of an order[62], in Denmark[63]; and Decoration of the Cross of Honour of the Dannebrog[64], a grade of an order[65], in Denmark[66], founded in 1808[67].

Death and Burial

Julius Petersen died on +1910-08-05T00:00:00Z[5]. He passed away in Copenhagen[4]. He is buried at Vestre Cemetery[10].

Why It Matters

Julius Petersen ranks in the top 0.73% of human entities by monthly Wikipedia readership (24 views/month, #7,287 of 1,000,298).[9] He has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[68] He is known by 19 alternative names across languages and contexts.[69]

Entities named for him include Petersen graph[56], an undirected graph[57] and Petersen's theorem[58], a theorem[59].

FAQs

Where was Julius Petersen born?

Born in Sorø[2], Julius Petersen…

Where did Julius Petersen die?

Julius Petersen died in Copenhagen[4].

What did Julius Petersen do for work?

Julius Petersen worked as mathematician[6], university teacher[7], and scientist[8].

Where did Julius Petersen go to school?

Julius Petersen was educated at University of Copenhagen[21], Technical University of Denmark[22], and Sorø Academy[23].

What awards did Julius Petersen receive?

Honors received include Q106076863[60], Knight of the Order of the Dannebrog[61], and Decoration of the Cross of Honour of the Dannebrog[64].

References

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

Direct Wikidata claims

  1. [2] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  2. [4] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  3. [11] . wikidata.org.
  4. [21] . MacTutor History of Mathematics archive. wikidata.org.
  5. [22] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  6. [23] . MacTutor History of Mathematics archive. wikidata.org.
  7. [12] . wikidata.org.
  8. [13] . Czech National Authority Database. Retrieved . wikidata.org.
  9. [14] . Czech National Authority Database. Retrieved . wikidata.org.
  10. [15] . Czech National Authority Database. Retrieved . wikidata.org.
  11. [16] . Czech National Authority Database. Retrieved . wikidata.org.
  12. [17] . Czech National Authority Database. Retrieved . wikidata.org.
  13. [6] . wikidata.org.
  14. [7] . wikidata.org.
  15. [8] . Czech National Authority Database. Retrieved . wikidata.org.
  16. [18] . MacTutor History of Mathematics archive. wikidata.org.
  17. [19] . Salmonsens konversationsleksikon, 2nd edition. wikidata.org.
  18. [20] . MacTutor History of Mathematics archive. wikidata.org.
  19. [10] . Find a Grave. Retrieved . wikidata.org.
  20. [60] . Retrieved . wikidata.org.
  21. [61] . Retrieved . wikidata.org.
  22. [64] . Retrieved . wikidata.org.
  23. [3] . BnF authorities. Retrieved . wikidata.org.
  24. [5] . BnF authorities. Retrieved . wikidata.org.
  25. [24] . wikidata.org.
  26. [25] . wikidata.org.
  27. [26] . wikidata.org.
  28. [27] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [56] . wikidata.org. → on this site
  2. [58] . 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. [43] . Wikidata. wikidata.org. → on this site
  17. [44] . Wikidata. wikidata.org. → on this site
  18. [45] . Wikidata. wikidata.org. → on this site
  19. [46] . Wikidata. wikidata.org. → on this site
  20. [47] . Wikidata. wikidata.org. → on this site
  21. [48] . Wikidata. wikidata.org. → on this site
  22. [49] . Wikidata. wikidata.org. → on this site
  23. [50] . Wikidata. wikidata.org. → on this site
  24. [51] . Wikidata. wikidata.org. → on this site
  25. [52] . Wikidata. wikidata.org. → on this site
  26. [62] . Wikidata. wikidata.org. → on this site
  27. [63] . Wikidata. wikidata.org. → on this site
  28. [65] . Wikidata. wikidata.org. → on this site
  29. [66] . Wikidata. wikidata.org. → on this site
  30. [67] . Wikidata. wikidata.org. → on this site
  31. [53] . Wikidata. wikidata.org. → on this site
  32. [54] . Wikidata. wikidata.org. → on this site
  33. [55] . Wikidata. wikidata.org. → on this site
  34. [57] . Wikidata. wikidata.org. → on this site
  35. [59] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [9] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [68] . Wikidata sitelinks. wikidata.org.
  3. [69] . 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). Julius Petersen. Retrieved April 10, 2026, from https://4ort.xyz/entity/julius-petersen
MLA “Julius Petersen.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/julius-petersen.
BibTeX @misc{4ortxyz_julius-petersen_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Julius Petersen}}, year = {2026}, url = {https://4ort.xyz/entity/julius-petersen}, note = {Accessed: 2026-04-10}}
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