Ernst Leonard Lindelöf

Finnish mathematician who made contributions in real/complex analysis and topology (1870–1946)
Person human Q924443
Ernst Leonard Lindelöf
Daniel Nyblin · Public Domain · Wikimedia
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Summary

Ernst Leonard Lindelöf was born on March 7, 1870[1], in Helsinki[2]. He died on June 4, 1946[3], in Helsinki[4]. He worked as a mathematician[5], topologist[6], and university teacher[7]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (224 views/month, #7,266 of 1,000,298).[8]

Key Facts

  • Place of burial: Hietaniemi cemetery[9]
  • Father: Lorenz Lindelöf[10]
  • Country of citizenship: Grand Duchy of Finland[11], Finland[12]
  • Native language: Swedish[13]
  • Field of work: topology[14]
  • Employer: University of Helsinki[15]
  • Educated at: University of Helsinki[16], University of Göttingen[17], Stockholm University[18], University of Paris[19]
  • Doctoral advisor: Hjalmar Mellin[20]
  • Notable work: Phragmén–Lindelöf principle[21], Lindelöf hypothesis[22], Picard–Lindelöf theorem[23], Lindelöf space[24], Lindelöf's theorem[25]
  • Award received: Grand Cross of the Order of the White Rose of Finland[26], Order of Saint Anna, 3rd class[27], Knight of the Order of the Polar Star[28]
  • Member of: Royal Swedish Academy of Sciences[29], Finnish Society of Sciences and Letters[30], Royal Prussian Academy of Sciences[31], Göttingen Academy of Sciences and Humanities in Lower Saxony[32]
  • Sex or gender: male[33]
  • Doctoral student: Pekka Myrberg[34], Lars Ahlfors[35], Gunnar af Hällström[36], Felix Iversen[37], Gustaf Järnefelt[38], Ensio Kivikoski[39], Frithiof Nevanlinna[40], Rolf Nevanlinna[41], E. J. Nyström[42], Nils Johan Pipping[43], Kalle Aukusti Poukka[44], Kalle Väisälä[45], Vilho Väisälä[46], Elias Aukusti Hintikka[47]
  • Commons category: Ernst Lindelöf[48]
  • Family name: Lindelöf[49]
  • Given name: Ernst[50], Leonard[51]
  • Work location: Helsinki[52]
  • Academic thesis: Q65649003[53]
  • Instrument: violin[54]
  • Described by source: Brockhaus and Efron Encyclopedic Dictionary[55]

Body

Works and Contributions

Things named for Ernst Leonard Lindelöf include Picard–Lindelöf theorem[56], Lindelöf space[57], Lindelöf hypothesis[58], Phragmén–Lindelöf principle[59], Lindelöf's lemma[60], 1407 Lindelöf[61], and Ernst Lindelöf award[62].

Why It Matters

Ernst Leonard Lindelöf has Wikipedia articles in 15 language editions, a strong signal of global cultural recognition.[63] He is known by 19 alternative names across languages and contexts.[64]

He is credited with the discovery of Phragmén–Lindelöf principle[65], a theorem[66]. Entities named for him include Picard–Lindelöf theorem[56], Lindelöf space[57], Lindelöf hypothesis[58], Phragmén–Lindelöf principle[59], Lindelöf's lemma[60], and 1407 Lindelöf[61].

His notable doctoral advisees include Lars Ahlfors[67], a mathematician[68], 1907–1996[69], of Russian Empire[70], awarded the Wolf Prize in Mathematics[71], specialised in mathematical analysis[72]; Rolf Nevanlinna[73], a mathematician[74], 1895–1980[75], of Finland[76], awarded the Wihuri International Prize[77], specialised in mathematics[78]; Vilho Väisälä[79], a physicist[80], 1889–1969[81], of Finland[82], awarded the Commander of the Order of the White Rose of Finland[83], specialised in meteorology[84]; Pekka Myrberg[85], a mathematician[86], 1892–1976[87], of Finland[88], awarded the Knight First Class of the Order of the White Rose of Finland[89], specialised in mathematics[90]; Frithiof Nevanlinna[91], a mathematician[92], 1894–1977[93], of Finland[94], awarded the Commander of the Order of the White Rose of Finland[95], specialised in mathematics[96]; and Felix Iversen[97], a mathematician[98], 1887–1973[99], of Finland[100], awarded the International Stalin Prize for Peace[101], specialised in mathematics[102].

FAQs

Where was Ernst Leonard Lindelöf born?

Ernst Leonard Lindelöf's place of birth was Helsinki[2].

Where did Ernst Leonard Lindelöf die?

Ernst Leonard Lindelöf passed away in Helsinki[4].

Who were Ernst Leonard Lindelöf's parents?

Ernst Leonard Lindelöf's father was Lorenz Lindelöf[10].

What did Ernst Leonard Lindelöf do for work?

Ernst Leonard Lindelöf worked as a mathematician[5], topologist[6], and university teacher[7].

Where did Ernst Leonard Lindelöf go to school?

Ernst Leonard Lindelöf was educated at University of Helsinki[16], University of Göttingen[17], Stockholm University[18], and University of Paris[19].

What awards did Ernst Leonard Lindelöf receive?

Honors received include Grand Cross of the Order of the White Rose of Finland[26], Order of Saint Anna, 3rd class[27], and Knight of the Order of the Polar Star[28].

What did Ernst Leonard Lindelöf discover?

Ernst Leonard Lindelöf is credited as discoverer of Phragmén–Lindelöf principle[65].

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. [33] ↑ . BnF authorities. Retrieved . wikidata.org.
  4. [10] ↑ . wikidata.org.
  5. [11] ↑ . wikidata.org.
  6. [12] ↑ . wikidata.org.
  7. [16] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  8. [17] ↑ . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  9. [18] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  10. [19] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  11. [14] ↑ . wikidata.org.
  12. [13] ↑ . Biografiskt lexikon för Finland. wikidata.org.
  13. [5] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  14. [6] ↑ . wikidata.org.
  15. [7] ↑ . wikidata.org.
  16. [15] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  17. [9] ↑ . Find a Grave. wikidata.org.
  18. [26] ↑ . The National Biography of Finland. wikidata.org.
  19. [27] ↑ . The National Biography of Finland. wikidata.org.
  20. [28] ↑ . The National Biography of Finland. wikidata.org.
  21. [20] ↑ . Mathematics Genealogy Project. Retrieved . wikidata.org.
  22. [34] ↑ . Mathematics Genealogy Project. wikidata.org.
  23. [35] ↑ . Mathematics Genealogy Project. wikidata.org.
  24. [36] ↑ . Mathematics Genealogy Project. wikidata.org.
  25. [37] ↑ . Mathematics Genealogy Project. wikidata.org.
  26. [38] ↑ . Mathematics Genealogy Project. wikidata.org.
  27. [39] ↑ . Mathematics Genealogy Project. wikidata.org.
  28. [40] ↑ . Mathematics Genealogy Project. wikidata.org.
  29. [41] ↑ . Mathematics Genealogy Project. wikidata.org.
  30. [42] ↑ . Mathematics Genealogy Project. wikidata.org.
  31. [43] ↑ . Mathematics Genealogy Project. wikidata.org.
  32. [44] ↑ . Mathematics Genealogy Project. wikidata.org.
  33. [45] ↑ . Mathematics Genealogy Project. wikidata.org.
  34. [46] ↑ . Mathematics Genealogy Project. wikidata.org.
  35. [47] ↑ . Mathematics Genealogy Project. wikidata.org.
  36. [48] ↑ . wikidata.org.
  37. [29] ↑ . wikidata.org.
  38. [30] ↑ . wikidata.org.
  39. [31] ↑ . wikidata.org.
  40. [32] ↑ . wikidata.org.
  41. [1] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  42. [3] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  43. [49] ↑ . wikidata.org.
  44. [50] ↑ . wikidata.org.
  45. [51] ↑ . wikidata.org.
  46. [21] ↑ . wikidata.org.
  47. [22] ↑ . wikidata.org.
  48. [23] ↑ . wikidata.org.
  49. [24] ↑ . wikidata.org.
  50. [25] ↑ . wikidata.org.
  51. [52] ↑ . Biografiskt lexikon för Finland. wikidata.org.
  52. [53] ↑ . Mathematics Genealogy Project. wikidata.org.
  53. [54] ↑ . Biografiskt lexikon för Finland. wikidata.org.
  54. [55] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [65] ↑ . wikidata.org. → on this site
  2. [67] ↑ . wikidata.org. → on this site
  3. [73] ↑ . wikidata.org. → on this site
  4. [79] ↑ . wikidata.org. → on this site
  5. [85] ↑ . wikidata.org. → on this site
  6. [91] ↑ . wikidata.org. → on this site
  7. [97] ↑ . wikidata.org. → on this site
  8. [56] ↑ . wikidata.org. → on this site
  9. [57] ↑ . wikidata.org. → on this site
  10. [58] ↑ . wikidata.org. → on this site
  11. [59] ↑ . wikidata.org. → on this site
  12. [60] ↑ . wikidata.org. → on this site
  13. [61] ↑ . wikidata.org. → on this site
  14. [62] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [66] ↑ . Wikidata. wikidata.org. → on this site
  2. [68] ↑ . Wikidata. wikidata.org. → on this site
  3. [69] ↑ . Wikidata. wikidata.org. → on this site
  4. [70] ↑ . Wikidata. wikidata.org. → on this site
  5. [71] ↑ . Wikidata. wikidata.org. → on this site
  6. [72] ↑ . Wikidata. wikidata.org. → on this site
  7. [74] ↑ . Wikidata. wikidata.org. → on this site
  8. [75] ↑ . Wikidata. wikidata.org. → on this site
  9. [76] ↑ . Wikidata. wikidata.org. → on this site
  10. [77] ↑ . Wikidata. wikidata.org. → on this site
  11. [78] ↑ . Wikidata. wikidata.org. → on this site
  12. [80] ↑ . Wikidata. wikidata.org. → on this site
  13. [81] ↑ . Wikidata. wikidata.org. → on this site
  14. [82] ↑ . Wikidata. wikidata.org. → on this site
  15. [83] ↑ . Wikidata. wikidata.org. → on this site
  16. [84] ↑ . Wikidata. wikidata.org. → on this site
  17. [86] ↑ . Wikidata. wikidata.org. → on this site
  18. [87] ↑ . Wikidata. wikidata.org. → on this site
  19. [88] ↑ . Wikidata. wikidata.org. → on this site
  20. [89] ↑ . Wikidata. wikidata.org. → on this site
  21. [90] ↑ . Wikidata. wikidata.org. → on this site
  22. [92] ↑ . Wikidata. wikidata.org. → on this site
  23. [93] ↑ . Wikidata. wikidata.org. → on this site
  24. [94] ↑ . Wikidata. wikidata.org. → on this site
  25. [95] ↑ . Wikidata. wikidata.org. → on this site
  26. [96] ↑ . Wikidata. wikidata.org. → on this site
  27. [98] ↑ . Wikidata. wikidata.org. → on this site
  28. [99] ↑ . Wikidata. wikidata.org. → on this site
  29. [100] ↑ . Wikidata. wikidata.org. → on this site
  30. [101] ↑ . Wikidata. wikidata.org. → on this site
  31. [102] ↑ . Wikidata. wikidata.org. → on this site

Aggregate / graph-position facts

  1. [8] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [63] ↑ . Wikidata sitelinks. wikidata.org.
  3. [64] ↑ . 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). Ernst Leonard Lindelöf. Retrieved October 20, 2026, from https://4ort.xyz/entity/ernst-leonard-lindel-f
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BibTeX @misc{4ortxyz_ernst-leonard-lindel-f_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Ernst Leonard Lindelöf}}, year = {2026}, url = {https://4ort.xyz/entity/ernst-leonard-lindel-f}, note = {Accessed: 2026-10-20}}
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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. 6d ago · OKA bot bot · 2026-10-17 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'bg', 'ca', 'commons', 'cs', 'de', 'en', 'es', 'eu', 'fi', 'fr', 'gl', 'i
    Sitelink count → 25
    Claims rich → —
    "/* wbeditentity-statements-multiple-properties-update:0||4 */ source for place of birth, source for place of death, source for date of birth, source for date of death from Store norske leksikon ([[Wik"
  2. 4w ago · Ferran Mir · 2026-09-19 view diff on Wikidata ↗
    Image → Ernst-Lindelof.jpg, Ernst Lindelöf portrait late 1930s.tif, Ernst Lindelöf by Sjöström.jpeg
    Notable work → Phragmén–Lindelöf principle, Lindelöf hypothesis, Picard–Lindelöf theorem +3
    Find a grave memorial id → 114117805
    Educated at → University of Helsinki, University of Göttingen, Stockholm University +1
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1|5 */ Academic thesis: Q65649003"
  3. 4w ago · Ferran Mir · 2026-09-19 view diff on Wikidata ↗
    Different from → Ernst Lindelöf
    "/* wbsetclaim-create:2||1 */ Different from: Ernst Lindelöf"
  4. 17w ago · Robertsilen · 2026-06-23 view diff on Wikidata ↗
    Instrument → violin
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/38032|batch #38032]]: instrument P1303, från blf.fi"
  5. 17w ago · Robertsilen · 2026-06-20 view diff on Wikidata ↗
    Significant person → Lars Edvard Phragmén
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/37449|batch #37449]]: viktig person P3342 med roll P3831; tolkat ur artiklar vid blf.fi; släktskap/lärare exkluderade; batch #"
  6. 18w ago · Robertsilen · 2026-06-14 view diff on Wikidata ↗
    Student → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/36495|batch #36495]]: P1066 student till, blf.fi, inverse"
  7. 18w ago · Robertsilen · 2026-06-14 view diff on Wikidata ↗
    Student → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/36432|batch #36432]]"
  8. 22w ago · Epìdosis · 2026-05-21 view diff on Wikidata ↗
    Employer → University of Helsinki
    Member of → —
    Described by source → Brockhaus and Efron Encyclopedic Dictionary
    Sibling → Uno Lindelöf, Carl Lindelöf
    + 32 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32154|batch #32154]]: import P21 and P106 from GND (36)"
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