Jacques Hadamard

French mathematician (1865–1963)
Person human Q164425
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Jacques Hadamard

Summary

Jacques Hadamard is a human[1]. His place of birth was Versailles[2]. He passed away in Paris[3]. He worked as a mathematician[4], professor[5], researcher[6], and university teacher[7]. He ranks in the top 0.72% of human entities by monthly Wikipedia readership (460 views/month, #7,169 of 1,000,298).[8]

Key Facts

  • Jacques Hadamard was born in Versailles[2].
  • Jacques Hadamard died in Paris[3].
  • Burial took place at Père Lachaise Cemetery[9].
  • Jacques Hadamard's father was Amédée Hadamard[10].
  • Jacques Hadamard held citizenship in France[11].
  • Jacques Hadamard worked as a mathematician[4].
  • Jacques Hadamard's professions included professor[5].
  • Jacques Hadamard's professions included researcher[6].
  • Jacques Hadamard worked as a university teacher[7].
  • Jacques Hadamard's field of work was partial differential equation[12].
  • Jacques Hadamard's field of work was number theory[13].
  • Jacques Hadamard's field of work was mathematics[14].
  • Jacques Hadamard's field of work was mechanics[15].
  • Jacques Hadamard's field of work was theoretical mechanics[16].
  • Jacques Hadamard's field of work was analytic function[17].
  • Jacques Hadamard held the position of chairperson[18].
  • Jacques Hadamard was employed by Collège de France[19].
  • Jacques Hadamard was employed by Columbia University[20].
  • Jacques Hadamard was employed by École polytechnique[21].
  • Among Jacques Hadamard's employers was Lycée Buffon[22].
  • Among Jacques Hadamard's employers was University of Paris[23].
  • Jacques Hadamard was employed by Lycée Saint-Louis[24].
  • Jacques Hadamard's education included a stint at École Normale Supérieure[25].
  • Jacques Hadamard's education included a stint at Lycée Louis-le-Grand[26].
  • Jacques Hadamard's education included a stint at Lycée Charlemagne[27].

Body

Origins and Family

Jacques Hadamard's place of birth was Versailles[2]. His father was Amédée Hadamard[10].

Education

Educated at École Normale Supérieure[25], a école normale supérieure[28], in France[29], founded in 1794[30], headquartered in Paris[31]; Lycée Louis-le-Grand[26], an educational facility[32], in France[33], founded in 1965[34]; Lycée Charlemagne[27], an educational facility[35], in France[36], founded in 1965[37]; and University of Paris[38], a former entity[39], in France[40], founded in 1150[41], headquartered in Paris[42]. Doctoral advisors include Charles Émile Picard[43] and Jules Tannery[44].

Career and Affiliations

Recorded occupations include mathematician[4], professor[5], researcher[6], and university teacher[7]. Fields of work include partial differential equation[12]; number theory[13], a branch of mathematics[45]; mathematics[14], an academic discipline[46]; mechanics[15], a branch of physics[47]; theoretical mechanics[16], a branch of mechanics[48]; and analytic function[17]. Employers include Collège de France[19], a higher education institution[49], in France[50], founded in 1530[51], headquartered in Paris[52]; Columbia University[20], a private university[53], in United States[54], founded in 1754[55], headquartered in Manhattan[56]; École polytechnique[21], a grande école[57], in France[58], founded in 1794[59], headquartered in Palaiseau[60]; Lycée Buffon[22], a lycée[61], in France[62], founded in 1885[63]; University of Paris[23], a former entity[64], in France[65], founded in 1150[66], headquartered in Paris[67]; and Lycée Saint-Louis[24], an educational facility[68], in France[69], founded in 1965[70]. Jacques Hadamard held the position of chairperson[18]. Doctoral students include André Weil[71], Maurice René Fréchet[72], Paul Pierre Lévy[73], Szolem Mandelbrojt[74], Lucien Hibbert[75], and Șerban Gheorghiu[76].

Recognition

Awards received include CNRS Gold medal[77], Feltrinelli Prize[78], Poncelet Prize[79], Grand Cross of the Legion of Honour[80], Grand Officer of the Legion of Honour[81], and Officer of the Legion of Honour[82].

Death and Burial

Jacques Hadamard died in Paris[3]. Burial took place at Père Lachaise Cemetery[9].

Works and Contributions

Things named for Jacques Hadamard include Hadamard product[83], Hadamard matrix[84], Cauchy–Hadamard theorem[85], Hadamard code[86], Hadamard's inequality[87], Cartan–Hadamard theorem[88], Hadamard gate[89], and Hermite–Hadamard inequality[90].

Why It Matters

Jacques Hadamard ranks in the top 0.72% of human entities by monthly Wikipedia readership (460 views/month, #7,169 of 1,000,298).[8] He has Wikipedia articles in 25 language editions, a strong signal of global cultural recognition.[91] He is known by 47 alternative names across languages and contexts.[92]

Entities named for him include Hadamard product[83], Hadamard matrix[84], Cauchy–Hadamard theorem[85], Hadamard code[86], Hadamard's inequality[87], and Cartan–Hadamard theorem[88].

His notable doctoral advisees include André Weil[93], a mathematician[94], 1906–1998[95], of France[96], awarded the Guggenheim Fellowship[97], specialised in algebraic geometry[98]; Paul Pierre Lévy[99], a mathematician[100], 1886–1971[101], of France[102], awarded the Cours Peccot[103], specialised in probability theory[104]; Szolem Mandelbrojt[105], a mathematician[106], 1899–1983[107], of France[108], awarded the Officer of the Legion of Honour[109], specialised in mathematics[110]; Maurice René Fréchet[111], a mathematician[112], 1878–1973[113], of France[114], awarded the Émile Picard Medal[115], specialised in mathematical analysis[116]; Pierre Massé[117], an economist[118], 1898–1987[119], of France[120], awarded the Grand Officer of the Legion of Honour[121]; and Marc Krasner[122], a mathematician[123], 1912–1985[124], of France[125].

FAQs

Where was Jacques Hadamard born?

Born in Versailles[2], Jacques Hadamard…

Where did Jacques Hadamard die?

Jacques Hadamard passed away in Paris[3].

Who were Jacques Hadamard's parents?

Jacques Hadamard's father was Amédée Hadamard[10].

What did Jacques Hadamard do for work?

Jacques Hadamard worked as mathematician[4], professor[5], researcher[6], and university teacher[7].

Where did Jacques Hadamard go to school?

Jacques Hadamard was educated at École Normale Supérieure[25], Lycée Louis-le-Grand[26], Lycée Charlemagne[27], and University of Paris[38].

What awards did Jacques Hadamard receive?

Honors received include CNRS Gold medal[77], Feltrinelli Prize[78], Poncelet Prize[79], and Grand Cross of the Legion of Honour[80].

References

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

Direct Wikidata claims

  1. [2] ↑ . Great Soviet Encyclopedia (1969–1978). Retrieved . wikidata.org.
  2. [3] ↑ . Great Soviet Encyclopedia (1969–1978). Retrieved . wikidata.org.
  3. [10] ↑ . wikidata.org.
  4. [11] ↑ . wikidata.org.
  5. [18] ↑ . wikidata.org.
  6. [25] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  7. [26] ↑ . MacTutor History of Mathematics archive. google.cat. Provenance: wikidata.org.
  8. [27] ↑ . MacTutor History of Mathematics archive. google.cat. Provenance: wikidata.org.
  9. [38] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  15. [17] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  16. [4] ↑ . wikidata.org.
  17. [5] ↑ . list of professors at Collège de France. wikidata.org.
  18. [6] ↑ . cnrs.fr. cnrs.fr. Provenance: wikidata.org.
  19. [7] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  20. [19] ↑ . list of professors at Collège de France. wikidata.org.
  21. [20] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  22. [21] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  23. [22] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  24. [23] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  25. [24] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  26. [9] ↑ . Find a Grave. books.google.fr. Provenance: wikidata.org.
  27. [77] ↑ . cnrs.fr. cnrs.fr. Provenance: wikidata.org.
  28. [78] ↑ . Retrieved . wikidata.org.
  29. [79] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  30. [80] ↑ . Léonore database. wikidata.org.
  31. [81] ↑ . Léonore database. wikidata.org.
  32. [82] ↑ . Léonore database. wikidata.org.
  33. [43] ↑ . Mathematics Genealogy Project. Retrieved . wikidata.org.
  34. [44] ↑ . wikidata.org.
  35. [71] ↑ . Mathematics Genealogy Project. wikidata.org.
  36. [72] ↑ . Mathematics Genealogy Project. wikidata.org.
  37. [73] ↑ . Mathematics Genealogy Project. wikidata.org.
  38. [74] ↑ . Mathematics Genealogy Project. wikidata.org.
  39. [75] ↑ . Mathematics Genealogy Project. wikidata.org.
  40. [76] ↑ . Mathematics Genealogy Project. wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [93] ↑ . wikidata.org. → on this site
  2. [99] ↑ . wikidata.org. → on this site
  3. [105] ↑ . wikidata.org. → on this site
  4. [111] ↑ . wikidata.org. → on this site
  5. [117] ↑ . wikidata.org. → on this site
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  7. [83] ↑ . wikidata.org. → on this site
  8. [84] ↑ . wikidata.org. → on this site
  9. [85] ↑ . wikidata.org. → on this site
  10. [86] ↑ . wikidata.org. → on this site
  11. [87] ↑ . wikidata.org. → on this site
  12. [88] ↑ . wikidata.org. → on this site
  13. [89] ↑ . wikidata.org. → on this site
  14. [90] ↑ . 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. [39] ↑ . Wikidata. wikidata.org. → on this site
  12. [40] ↑ . Wikidata. wikidata.org. → on this site
  13. [41] ↑ . Wikidata. wikidata.org. → on this site
  14. [42] ↑ . Wikidata. wikidata.org. → on this site
  15. [45] ↑ . Wikidata. wikidata.org. → on this site
  16. [46] ↑ . Wikidata. wikidata.org. → on this site
  17. [47] ↑ . Wikidata. wikidata.org. → on this site
  18. [48] ↑ . Wikidata. wikidata.org. → on this site
  19. [49] ↑ . Wikidata. wikidata.org. → on this site
  20. [50] ↑ . Wikidata. wikidata.org. → on this site
  21. [51] ↑ . Wikidata. wikidata.org. → on this site
  22. [52] ↑ . Wikidata. wikidata.org. → on this site
  23. [53] ↑ . Wikidata. wikidata.org. → on this site
  24. [54] ↑ . Wikidata. wikidata.org. → on this site
  25. [55] ↑ . Wikidata. wikidata.org. → on this site
  26. [56] ↑ . Wikidata. wikidata.org. → on this site
  27. [57] ↑ . Wikidata. wikidata.org. → on this site
  28. [58] ↑ . Wikidata. wikidata.org. → on this site
  29. [59] ↑ . Wikidata. wikidata.org. → on this site
  30. [60] ↑ . Wikidata. wikidata.org. → on this site
  31. [61] ↑ . Wikidata. wikidata.org. → on this site
  32. [62] ↑ . Wikidata. wikidata.org. → on this site
  33. [63] ↑ . Wikidata. wikidata.org. → on this site
  34. [64] ↑ . Wikidata. wikidata.org. → on this site
  35. [65] ↑ . Wikidata. wikidata.org. → on this site
  36. [66] ↑ . Wikidata. wikidata.org. → on this site
  37. [67] ↑ . Wikidata. wikidata.org. → on this site
  38. [68] ↑ . Wikidata. wikidata.org. → on this site
  39. [69] ↑ . Wikidata. wikidata.org. → on this site
  40. [70] ↑ . Wikidata. wikidata.org. → on this site
  41. [94] ↑ . Wikidata. wikidata.org. → on this site
  42. [95] ↑ . Wikidata. wikidata.org. → on this site
  43. [96] ↑ . Wikidata. wikidata.org. → on this site
  44. [97] ↑ . Wikidata. wikidata.org. → on this site
  45. [98] ↑ . Wikidata. wikidata.org. → on this site
  46. [100] ↑ . Wikidata. wikidata.org. → on this site
  47. [101] ↑ . Wikidata. wikidata.org. → on this site
  48. [102] ↑ . Wikidata. wikidata.org. → on this site
  49. [103] ↑ . Wikidata. wikidata.org. → on this site
  50. [104] ↑ . Wikidata. wikidata.org. → on this site
  51. [106] ↑ . Wikidata. wikidata.org. → on this site
  52. [107] ↑ . Wikidata. wikidata.org. → on this site
  53. [108] ↑ . Wikidata. wikidata.org. → on this site
  54. [109] ↑ . Wikidata. wikidata.org. → on this site
  55. [110] ↑ . Wikidata. wikidata.org. → on this site
  56. [112] ↑ . Wikidata. wikidata.org. → on this site
  57. [113] ↑ . Wikidata. wikidata.org. → on this site
  58. [114] ↑ . Wikidata. wikidata.org. → on this site
  59. [115] ↑ . Wikidata. wikidata.org. → on this site
  60. [116] ↑ . Wikidata. wikidata.org. → on this site
  61. [118] ↑ . Wikidata. wikidata.org. → on this site
  62. [119] ↑ . Wikidata. wikidata.org. → on this site
  63. [120] ↑ . Wikidata. wikidata.org. → on this site
  64. [121] ↑ . Wikidata. wikidata.org. → on this site
  65. [123] ↑ . Wikidata. wikidata.org. → on this site
  66. [124] ↑ . Wikidata. wikidata.org. → on this site
  67. [125] ↑ . 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. [91] ↑ . Wikidata sitelinks. wikidata.org.
  3. [92] ↑ . 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). Jacques Hadamard. Retrieved October 7, 2026, from https://4ort.xyz/entity/jacques-hadamard
MLA “Jacques Hadamard.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 Oct. 2026, https://4ort.xyz/entity/jacques-hadamard.
BibTeX @misc{4ortxyz_jacques-hadamard_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Jacques Hadamard}}, year = {2026}, url = {https://4ort.xyz/entity/jacques-hadamard}, note = {Accessed: 2026-10-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Jacques Hadamard — https://4ort.xyz/entity/jacques-hadamard (retrieved 2026-10-07)

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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. 22h ago · Epìdosis · 2026-10-07 view diff on Wikidata ↗
    Nlb authority id (belarus) → SEK-459280
    Claims rich → —
    "/* wbcreateclaim-create:1| */ [[Property:P3390]]: SEK-459280, [[:toollabs:quickstatements/#/batch/289738|batch #289738]]"
  2. 6d ago · Epìdosis · 2026-10-01 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'arz', 'ast', 'az', 'azb', 'be', 'bn', 'bs', 'ca', 'cs', 'de', 'el', 'en'
    Signature → Jacques Hadamard signature.png
    Claims rich → —
    "/* wbeditentity-statements-multiple-properties-update:0||4 */ Cleanup: remove wikimedia+obsolete refs ([[User:Difool/WikidataCleanup]])"
  3. 16d ago · ~2026-51051-13 · 2026-09-22 view diff on Wikidata ↗
    Signature → Jacques Hadamard signature.png
    "/* wbsetclaim-update:2||1 */ [[Property:P109]]: Flaccid penis shaved.jpg"
  4. 7w ago · Ferran Mir · 2026-08-14 view diff on Wikidata ↗
    Member of → Royal Society, French Academy of Sciences, Academy of Sciences of the USSR +10
    "/* wbsetclaim-create:2||1 */ [[Property:P463]]: [[Q3550462]]"
  5. 9w ago · Epìdosis · 2026-08-04 view diff on Wikidata ↗
    Accademia nazionale dei lincei id → 1090-hadamard-jacques
    Participant in → Q105357310
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/45365|batch #45365]]: Update P14091 IDs"
  6. 9w ago · Ferran Mir · 2026-07-31 view diff on Wikidata ↗
    Member of → Royal Society, French Academy of Sciences, Academy of Sciences of the USSR +10
    Relative → Laurent Schwartz, Auguste Hadamard, David Hadamard +2
    "/* wbsetclaim-create:2||1 */ [[Property:P463]]: [[Q1429947]]"
  7. 9w ago · Ferran Mir · 2026-07-30 view diff on Wikidata ↗
    Student of → —
    Position held → chairperson
    Employer → Collège de France, Columbia University, École polytechnique +5
    Educated at → École Normale Supérieure, Lycée Louis-le-Grand, Lycée Charlemagne +1
    + 1 other property edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P800]]: [[Q3554817]]"
  8. 9w ago · Ferran Mir · 2026-07-30 view diff on Wikidata ↗
    Doctoral student → André Weil, Maurice René Fréchet, Paul Pierre Lévy +12
    Student → Anton Davidoglu
    "/* wbsetclaim-update:2||1 */ [[Property:P69]]: [[Q83259]]"
  9. 9w ago · Ferran Mir · 2026-07-30 view diff on Wikidata ↗
    Find a grave memorial id → 257906278
    Birth name → {'lang': 'fr', 'text': 'Jacques Salomon Hadamard'}
    Student → Anton Davidoglu
    "/* wbremoveclaims-remove:1| */ [[Property:P802]]: [[Q323232]]"
  10. 12w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → Wi9
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  11. 16w ago · Entropy Fighter · 2026-06-16 view diff on Wikidata ↗
    Relative → Laurent Schwartz, Auguste Hadamard, David Hadamard +2
    Image purged at → —
    Image last checked license → —
    Image unavailable reason → —
    + 2 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P1038]]: [[Q2871214]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.