Zygmunt Janiszewski

Polish mathematician
Person human Q245335
Zygmunt Janiszewski
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Zygmunt Janiszewski

Summary

Zygmunt Janiszewski is a human[1]. He was born in Warsaw[2]. He was born on June 12, 1888[3]. He passed away in Lviv[4]. He died on January 3, 1920[5]. He worked as a mathematician[6], topologist[7], and university teacher[8]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (31 views/month, #7,289 of 1,000,298).[9]

Key Facts

  • Zygmunt Janiszewski's place of birth was Warsaw[2].
  • Zygmunt Janiszewski died in Lviv[4].
  • Zygmunt Janiszewski was born on June 12, 1888[3].
  • Zygmunt Janiszewski was born on July 12, 1888[10].
  • Zygmunt Janiszewski died on January 3, 1920[5].
  • Burial took place at Lychakiv Cemetery[11].
  • Zygmunt Janiszewski held citizenship in Poland[12].
  • Zygmunt Janiszewski worked as a mathematician[6].
  • Zygmunt Janiszewski worked as a topologist[7].
  • Zygmunt Janiszewski worked as a university teacher[8].
  • Zygmunt Janiszewski's field of work was topology[13].
  • Zygmunt Janiszewski's field of work was set theory[14].
  • Zygmunt Janiszewski's field of work was mathematics[15].
  • Zygmunt Janiszewski was employed by University of Warsaw[16].
  • Among Zygmunt Janiszewski's employers was Lviv University[17].
  • Among Zygmunt Janiszewski's employers was Polish Legions in World War I[18].
  • Zygmunt Janiszewski's education included a stint at University of Paris[19].
  • Zygmunt Janiszewski was educated at University of Zurich[20].
  • Zygmunt Janiszewski's education included a stint at University of Göttingen[21].
  • Zygmunt Janiszewski's doctoral advisor was Henri Lebesgue[22].
  • A notable student of Zygmunt Janiszewski was Stanislawa Nikodym[23].
  • A notable work attributed to Zygmunt Janiszewski is Janiszewski's theorem[24].
  • Zygmunt Janiszewski is recorded as male[25].
  • Zygmunt Janiszewski's instance of is recorded as human[26].
  • Zygmunt Janiszewski's family is recorded as Q124432638[27].

Body

Origins and Family

Zygmunt Janiszewski was born in Warsaw[2]. Recorded date of birth include June 12, 1888[3] and July 12, 1888[10].

Education

Educated at University of Paris[19], a former entity[28], in France[29], founded in 1150[30], headquartered in Paris[31]; University of Zurich[20], a university[32], in Switzerland[33], founded in 1833[34], headquartered in Zurich[35]; and University of Göttingen[21], a campus university[36], in Germany[37], founded in 1734[38], headquartered in Göttingen[39]. Zygmunt Janiszewski's doctoral advisor was Henri Lebesgue[22].

Career and Affiliations

Recorded occupations include mathematician[6], topologist[7], and university teacher[8]. Fields of work include topology[13], a branch of mathematics[40]; set theory[14], a branch of mathematics[41]; and mathematics[15], an academic discipline[42]. Employers include University of Warsaw[16], a university[43], in Poland[44], founded in 1816[45], headquartered in Warsaw[46]; Lviv University[17], a public university[47], in Ukraine[48], founded in 1661[49], headquartered in Main building of Lviv University[50]; and Polish Legions in World War I[18], a military[51], in Austria–Hungary[52]. A notable student of Zygmunt Janiszewski was Stanislawa Nikodym[23]. He supervised Kazimierz Kuratowski as a doctoral student[53].

Works and Contributions

A notable work attributed to Zygmunt Janiszewski is Janiszewski's theorem[24].

Death and Burial

Zygmunt Janiszewski died on January 3, 1920[5]. He died in Lviv[4]. Recorded cause of death include pneumonia[54] and 1918–1920 flu pandemic[55]. Burial took place at Lychakiv Cemetery[11].

Why It Matters

Zygmunt Janiszewski ranks in the top 0.73% of human entities by monthly Wikipedia readership (31 views/month, #7,289 of 1,000,298).[9] He has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[56] He is known by 6 alternative names across languages and contexts.[57]

His notable doctoral advisees include Kazimierz Kuratowski[58], a mathematician[59], 1896–1980[60], of Poland[61], awarded the Fellow of the Royal Society of Edinburgh[62], specialised in topology[63].

FAQs

Where was Zygmunt Janiszewski born?

Zygmunt Janiszewski's place of birth was Warsaw[2].

Where did Zygmunt Janiszewski die?

Zygmunt Janiszewski died in Lviv[4].

What did Zygmunt Janiszewski do for work?

Zygmunt Janiszewski worked as mathematician[6], topologist[7], and university teacher[8].

Where did Zygmunt Janiszewski go to school?

Zygmunt Janiszewski was educated at University of Paris[19], University of Zurich[20], and University of Göttingen[21].

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] . Integrated Authority File. Retrieved . wikidata.org.
  3. [25] . Integrated Authority File. Retrieved . wikidata.org.
  4. [12] . wikidata.org.
  5. [26] . wikidata.org.
  6. [27] . wikidata.org.
  7. [19] . MacTutor History of Mathematics archive. wikidata.org.
  8. [20] . MacTutor History of Mathematics archive. wikidata.org.
  9. [21] . MacTutor History of Mathematics archive. wikidata.org.
  10. [13] . wikidata.org.
  11. [14] . wikidata.org.
  12. [15] . 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. [16] . MacTutor History of Mathematics archive. wikidata.org.
  17. [17] . MacTutor History of Mathematics archive. wikidata.org.
  18. [18] . wikidata.org.
  19. [11] . bazhum.muzhp.pl. bazhum.muzhp.pl. Provenance: wikidata.org.
  20. [22] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  21. [53] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  22. [54] . bazhum.muzhp.pl. bazhum.muzhp.pl. Provenance: wikidata.org.
  23. [55] . mathshistory.st-andrews.ac.uk. mathshistory.st-andrews.ac.uk. Provenance: wikidata.org.
  24. [3] . MacTutor History of Mathematics archive. Retrieved . books.google.cat. Provenance: wikidata.org.
  25. [10] . Integrated Authority File. Retrieved . wikidata.org.
  26. [5] . Integrated Authority File. Retrieved . wikidata.org.
  27. [24] . wikidata.org.
  28. [23] . vbn.aau.dk. Retrieved . vbn.aau.dk. Provenance: wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [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. [59] . Wikidata. wikidata.org. → on this site
  27. [60] . Wikidata. wikidata.org. → on this site
  28. [61] . Wikidata. wikidata.org. → on this site
  29. [62] . Wikidata. wikidata.org. → on this site
  30. [63] . 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. [56] . Wikidata sitelinks. wikidata.org.
  3. [57] . 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). Zygmunt Janiszewski. Retrieved April 10, 2026, from https://4ort.xyz/entity/zygmunt-janiszewski
MLA “Zygmunt Janiszewski.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/zygmunt-janiszewski.
BibTeX @misc{4ortxyz_zygmunt-janiszewski_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Zygmunt Janiszewski}}, year = {2026}, url = {https://4ort.xyz/entity/zygmunt-janiszewski}, note = {Accessed: 2026-04-10}}
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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. 13d ago · Epìdosis · 2026-05-19 view diff on Wikidata ↗
    Place of birth Warsaw
    Citizenship
    Educated at University of Paris, University of Zurich, University of Göttingen
    Notable work
    + 31 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32082|batch #32082]]: import P21 and P106 from GND (24)"
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