Kiyoshi Oka

Japanese mathematician who worked in the theory of several complex variables (1901-1978)
Person human Q1062061
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Kiyoshi Oka

Summary

Kiyoshi Oka is a human[1]. His place of birth was Osaka[2]. He was born on +1901-04-19T00:00:00Z[3]. He passed away in Nara[4]. He died on +1978-03-01T00:00:00Z[5]. He worked as a mathematician[6], university teacher[7], and philosopher[8]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (21 views/month, #7,282 of 1,000,298).[9]

Key Facts

  • Kiyoshi Oka was born in Osaka[2].
  • Kiyoshi Oka died in Nara[4].
  • Kiyoshi Oka was born on +1901-04-19T00:00:00Z[3].
  • Kiyoshi Oka died on +1978-03-01T00:00:00Z[5].
  • Kiyoshi Oka is buried at Byakugō-ji Temple[10].
  • Kiyoshi Oka held citizenship in Japan[11].
  • Kiyoshi Oka held citizenship in Empire of Japan[12].
  • Japanese was Kiyoshi Oka's native language[13].
  • Kiyoshi Oka's professions included mathematician[6].
  • Kiyoshi Oka worked as a university teacher[7].
  • Kiyoshi Oka worked as a philosopher[8].
  • Kiyoshi Oka's field of work was mathematical analysis[14].
  • Kiyoshi Oka's field of work was mathematics[15].
  • Kiyoshi Oka's field of work was complex analysis[16].
  • Kiyoshi Oka's field of work was complex function[17].
  • Among Kiyoshi Oka's employers was Kyoto University[18].
  • Kiyoshi Oka was employed by Nara Women's University[19].
  • Kiyoshi Oka was employed by Hiroshima University[20].
  • Among Kiyoshi Oka's employers was Hokkaido University[21].
  • Kiyoshi Oka was employed by Kyoto Sangyo University[22].
  • Kiyoshi Oka's education included a stint at Kyoto University[23].
  • Kiyoshi Oka was educated at Q11670793[24].
  • Kiyoshi Oka's education included a stint at University of Paris[25].
  • A notable work attributed to Kiyoshi Oka is Oka coherence theorem[26].
  • A notable work attributed to Kiyoshi Oka is Oka's lemma[27].

Body

Origins and Family

Born in Osaka[2], Kiyoshi Oka… he was born on +1901-04-19T00:00:00Z[3]. Japanese was his native language[13].

Education

Educated at Kyoto University[23], a national university[28], in Japan[29], founded in 1897[30], headquartered in Kyoto[31]; Q11670793[24], an elementary school in Japan[32], in Japan[33], founded in 1973[34]; and University of Paris[25], a former entity[35], in France[36], founded in 1150[37], headquartered in Paris[38].

Career and Affiliations

Recorded occupations include mathematician[6], university teacher[7], and philosopher[8]. Fields of work include mathematical analysis[14], an academic discipline[39]; mathematics[15], an academic discipline[40]; complex analysis[16], a branch of mathematics[41]; and complex function[17]. Employers include Kyoto University[18], a national university[42], in Japan[43], founded in 1897[44], headquartered in Kyoto[45]; Nara Women's University[19], a women's college[46], in Japan[47], founded in 1908[48], headquartered in Nara[49]; Hiroshima University[20], a national university[50], in Japan[51], founded in 1949[52], headquartered in Higashihiroshima[53]; Hokkaido University[21], a national university[54], in Japan[55], founded in 1918[56], headquartered in Kita-ku[57]; and Kyoto Sangyo University[22], a university[58], in Japan[59], founded in 1965[60], headquartered in Kita-ku[61].

Works and Contributions

Notable works include Oka coherence theorem[26], a theorem[62]; Oka's lemma[27], a theorem[63]; and Oka–Weil theorem[64], a theorem[65].

Recognition

Awards received include Order of Culture[66], an order[67], in Japan[68], founded in 1937[69]; Person of Cultural Merit[70], a title of honor[71], in Japan[72]; Asahi Prize[73], an award[74], in Japan[75], founded in 1929[76]; and Japan Academy Prize[77], an academic award[78], in Japan[79], founded in 1948[80].

Death and Burial

Kiyoshi Oka died on +1978-03-01T00:00:00Z[5]. He died in Nara[4]. Burial took place at Byakugō-ji Temple[10].

Why It Matters

Kiyoshi Oka ranks in the top 0.73% of human entities by monthly Wikipedia readership (21 views/month, #7,282 of 1,000,298).[9] He has Wikipedia articles in 9 language editions, a strong signal of global cultural recognition.[81] He is known by 4 alternative names across languages and contexts.[82]

FAQs

Where was Kiyoshi Oka born?

Born in Osaka[2], Kiyoshi Oka…

Where did Kiyoshi Oka die?

Kiyoshi Oka passed away in Nara[4].

What did Kiyoshi Oka do for work?

Kiyoshi Oka worked as mathematician[6], university teacher[7], and philosopher[8].

Where did Kiyoshi Oka go to school?

Kiyoshi Oka was educated at Kyoto University[23], Q11670793[24], and University of Paris[25].

What awards did Kiyoshi Oka receive?

Honors received include Order of Culture[66], Person of Cultural Merit[70], Asahi Prize[73], and Japan Academy Prize[77].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [4] . MacTutor History of Mathematics archive. wikidata.org.
  3. [11] . wikidata.org.
  4. [12] . wikidata.org.
  5. [23] . nara-wu.ac.jp. nara-wu.ac.jp. Provenance: wikidata.org.
  6. [24] . nara-wu.ac.jp. nara-wu.ac.jp. Provenance: wikidata.org.
  7. [25] . MacTutor History of Mathematics archive. wikidata.org.
  8. [14] . wikidata.org.
  9. [15] . Czech National Authority Database. Retrieved . wikidata.org.
  10. [16] . Czech National Authority Database. Retrieved . wikidata.org.
  11. [17] . Czech National Authority Database. Retrieved . wikidata.org.
  12. [13] . wikidata.org.
  13. [6] . wikidata.org.
  14. [7] . wikidata.org.
  15. [8] . wikidata.org.
  16. [18] . nara-wu.ac.jp. nara-wu.ac.jp. Provenance: wikidata.org.
  17. [19] . MacTutor History of Mathematics archive. nara-wu.ac.jp. Provenance: wikidata.org.
  18. [20] . MacTutor History of Mathematics archive. wikidata.org.
  19. [21] . MacTutor History of Mathematics archive. wikidata.org.
  20. [22] . nara-wu.ac.jp. nara-wu.ac.jp. Provenance: wikidata.org.
  21. [10] . nara-wu.ac.jp. nara-wu.ac.jp. Provenance: wikidata.org.
  22. [66] . nara-wu.ac.jp. nara-wu.ac.jp. Provenance: wikidata.org.
  23. [70] . wikidata.org.
  24. [73] . nara-wu.ac.jp. nara-wu.ac.jp. Provenance: wikidata.org.
  25. [77] . nara-wu.ac.jp. nara-wu.ac.jp. Provenance: wikidata.org.
  26. [3] . BnF authorities. Retrieved . wikidata.org.
  27. [5] . BnF authorities. Retrieved . wikidata.org.
  28. [26] . wikidata.org.
  29. [27] . wikidata.org.
  30. [64] . wikidata.org.

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. [53] . Wikidata. wikidata.org. → on this site
  27. [54] . Wikidata. wikidata.org. → on this site
  28. [55] . Wikidata. wikidata.org. → on this site
  29. [56] . Wikidata. wikidata.org. → on this site
  30. [57] . Wikidata. wikidata.org. → on this site
  31. [58] . Wikidata. wikidata.org. → on this site
  32. [59] . Wikidata. wikidata.org. → on this site
  33. [60] . Wikidata. wikidata.org. → on this site
  34. [61] . Wikidata. wikidata.org. → on this site
  35. [67] . Wikidata. wikidata.org. → on this site
  36. [68] . Wikidata. wikidata.org. → on this site
  37. [69] . Wikidata. wikidata.org. → on this site
  38. [71] . Wikidata. wikidata.org. → on this site
  39. [72] . Wikidata. wikidata.org. → on this site
  40. [74] . Wikidata. wikidata.org. → on this site
  41. [75] . Wikidata. wikidata.org. → on this site
  42. [76] . Wikidata. wikidata.org. → on this site
  43. [78] . Wikidata. wikidata.org. → on this site
  44. [79] . Wikidata. wikidata.org. → on this site
  45. [80] . Wikidata. wikidata.org. → on this site
  46. [62] . Wikidata. wikidata.org. → on this site
  47. [63] . Wikidata. wikidata.org. → on this site
  48. [65] . 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. [81] . Wikidata sitelinks. wikidata.org.
  3. [82] . 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). Kiyoshi Oka. Retrieved April 10, 2026, from https://4ort.xyz/entity/kiyoshi-oka
MLA “Kiyoshi Oka.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/kiyoshi-oka.
BibTeX @misc{4ortxyz_kiyoshi-oka_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Kiyoshi Oka}}, year = {2026}, url = {https://4ort.xyz/entity/kiyoshi-oka}, note = {Accessed: 2026-04-10}}
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