Frigyes Riesz

Hungarian mathematician who made fundamental contributions to functional analysis (1880–1956)
Person human Q380366
Frigyes Riesz
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Frigyes Riesz

Summary

Frigyes Riesz is a human[1]. He was born in Győr[2]. He was born on +1880-01-22T00:00:00Z[3]. He passed away in Budapest[4]. He died on +1956-02-28T00:00:00Z[5]. He worked as a mathematician[6] and university teacher[7]. He ranks in the top 0.72% of human entities by monthly Wikipedia readership (90 views/month, #7,223 of 1,000,298).[8]

Key Facts

  • Frigyes Riesz was born in Győr[2].
  • Frigyes Riesz passed away in Budapest[4].
  • Frigyes Riesz was born on +1880-01-22T00:00:00Z[3].
  • Frigyes Riesz died on +1956-02-28T00:00:00Z[5].
  • Frigyes Riesz is buried at Fiume Road Graveyard[9].
  • Frigyes Riesz held citizenship in Hungary[10].
  • Frigyes Riesz's professions included mathematician[6].
  • Frigyes Riesz's professions included university teacher[7].
  • Frigyes Riesz's field of work was mathematical analysis[11].
  • Frigyes Riesz's field of work was functional analysis[12].
  • Frigyes Riesz was employed by Franz Joseph University[13].
  • Frigyes Riesz was employed by University of Szeged[14].
  • Frigyes Riesz was employed by Eötvös Loránd University[15].
  • Frigyes Riesz's education included a stint at University of Zurich[16].
  • Frigyes Riesz's education included a stint at University of Göttingen[17].
  • Frigyes Riesz's education included a stint at Eötvös Loránd University[18].
  • Frigyes Riesz's doctoral advisor was Gyula Vályi[19].
  • A notable work attributed to Frigyes Riesz is Riesz's lemma[20].
  • A notable work attributed to Frigyes Riesz is Denjoy–Riesz theorem[21].
  • A notable work attributed to Frigyes Riesz is F. and M. Riesz theorem[22].
  • A notable work attributed to Frigyes Riesz is Radon–Riesz theorem[23].
  • A notable work attributed to Frigyes Riesz is Riesz representation theorem[24].
  • A notable work attributed to Frigyes Riesz is Riesz–Fischer theorem[25].
  • Frigyes Riesz received the Kossuth Prize[26].
  • Frigyes Riesz received the Hungarian Heritage Award[27].

Body

Origins and Family

Frigyes Riesz was born in Győr[2]. He was born on +1880-01-22T00:00:00Z[3].

Education

Educated at University of Zurich[16], a university[28], in Switzerland[29], founded in 1833[30], headquartered in Zurich[31]; University of Göttingen[17], a campus university[32], in Germany[33], founded in 1734[34], headquartered in Göttingen[35]; and Eötvös Loránd University[18], a public research university[36], in Hungary[37], founded in 1635[38], headquartered in Budapest[39]. Frigyes Riesz's doctoral advisor was Gyula Vályi[19].

Career and Affiliations

Recorded occupations include mathematician[6] and university teacher[7]. Fields of work include mathematical analysis[11], an academic discipline[40] and functional analysis[12], a branch of mathematics[41]. Employers include Franz Joseph University[13], a university[42], founded in 1872[43], headquartered in Cluj-Napoca[44]; University of Szeged[14], a public university[45], in Hungary[46], founded in 1921[47], headquartered in Cluj-Napoca[48]; and Eötvös Loránd University[15], a public research university[49], in Hungary[50], founded in 1635[51], headquartered in Budapest[52]. Doctoral students include Tibor Radó[53], a mathematician[54], 1895–1965[55], of Hungary[56], specialised in mathematics[57]; Géza Grünwald[58], a mathematician[59], 1910–1943[60], of Hungary[61]; Béla Szőkefalvi-Nagy[62], a mathematician[63], 1913–1998[64], of Hungary[65], awarded the Kossuth Prize[66], specialised in mathematical analysis[67]; János Aczél[68], a mathematician[69], 1924–2020[70], of Hungary[71], awarded the honorary doctorate of the University of Graz[72], specialised in functional equation[73]; Alfréd Rényi[74], a mathematician[75], 1921–1970[76], of Hungary[77], awarded the Kossuth Prize[78], specialised in probability theory[79]; and Steven Gaal[80], a mathematician[81], 1924–2016[82], of United States[83], specialised in mathematics[84].

Works and Contributions

Notable works include Riesz's lemma[20], Denjoy–Riesz theorem[21], F. and M. Riesz theorem[22], Radon–Riesz theorem[23], Riesz representation theorem[24], and Riesz–Fischer theorem[25]. Things named for Frigyes Riesz include Riesz representation theorem[85], Riesz–Markov–Kakutani representation theorem[86], Riesz–Fischer theorem[87], Riesz's lemma[88], and Riesz space[89].

Recognition

Awards received include Kossuth Prize[26], an award[90], in Hungary[91], founded in 1948[92]; Hungarian Heritage Award[27], an award[93], in Hungary[94]; and doctor honoris causa from the University of Paris[95], an award[96], in France[97].

Death and Burial

Frigyes Riesz died on +1956-02-28T00:00:00Z[5]. He died in Budapest[4]. Burial took place at Fiume Road Graveyard[9].

Why It Matters

Frigyes Riesz ranks in the top 0.72% of human entities by monthly Wikipedia readership (90 views/month, #7,223 of 1,000,298).[8] He has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[98] He is known by 21 alternative names across languages and contexts.[99]

He has been cited as an influence by János Aczél[100], a mathematician[101], 1924–2020[102], of Hungary[103], awarded the honorary doctorate of the University of Graz[104], specialised in functional equation[105].

He is credited with the discovery of Hardy space[106], a mathematical concept[107]. Entities named for him include Riesz representation theorem[85], Riesz–Markov–Kakutani representation theorem[86], Riesz–Fischer theorem[87], Riesz's lemma[88], and Riesz space[89].

His notable doctoral advisees include Alfréd Rényi[108], a mathematician[109], 1921–1970[110], of Hungary[111], awarded the Kossuth Prize[112], specialised in probability theory[113]; Tibor Radó[114], a mathematician[115], 1895–1965[116], of Hungary[117], specialised in mathematics[118]; Béla Szőkefalvi-Nagy[119], a mathematician[120], 1913–1998[121], of Hungary[122], awarded the Kossuth Prize[123], specialised in mathematical analysis[124]; János Aczél[125], a mathematician[126], 1924–2020[127], of Hungary[128], awarded the honorary doctorate of the University of Graz[129], specialised in functional equation[130]; and Steven Gaal[131], a mathematician[132], 1924–2016[133], of United States[134], specialised in mathematics[135].

FAQs

Where was Frigyes Riesz born?

Born in Győr[2], Frigyes Riesz…

Where did Frigyes Riesz die?

Frigyes Riesz died in Budapest[4].

What did Frigyes Riesz do for work?

Frigyes Riesz worked as mathematician[6] and university teacher[7].

Where did Frigyes Riesz go to school?

Frigyes Riesz was educated at University of Zurich[16], University of Göttingen[17], and Eötvös Loránd University[18].

What awards did Frigyes Riesz receive?

Honors received include Kossuth Prize[26], Hungarian Heritage Award[27], and doctor honoris causa from the University of Paris[95].

Who did Frigyes Riesz influence?

Frigyes Riesz has been cited as an influence by János Aczél[100].

What did Frigyes Riesz discover?

Frigyes Riesz is credited as discoverer of Hardy space[106].

References

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

Direct Wikidata claims

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  2. [4] . Great Soviet Encyclopedia (1969–1978). Retrieved . wikidata.org.
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  11. [13] . MacTutor History of Mathematics archive. wikidata.org.
  12. [14] . MacTutor History of Mathematics archive. wikidata.org.
  13. [15] . MacTutor History of Mathematics archive. wikidata.org.
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  15. [26] . wikidata.org.
  16. [27] . wikidata.org.
  17. [95] . archive.org. archive.org. Provenance: wikidata.org.
  18. [19] . wikidata.org.
  19. [53] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  20. [58] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  21. [62] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  22. [68] . Mathematics Genealogy Project. Retrieved . wikidata.org.
  23. [74] . Mathematics Genealogy Project. Retrieved . wikidata.org.
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  25. [3] . BnF authorities. Retrieved . wikidata.org.
  26. [5] . Great Soviet Encyclopedia (1969–1978). Retrieved . wikidata.org.
  27. [20] . wikidata.org.
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  32. [25] . wikidata.org.

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Class ancestry

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

Aggregate / graph-position facts

  1. [8] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [98] . Wikidata sitelinks. wikidata.org.
  3. [99] . 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). Frigyes Riesz. Retrieved April 10, 2026, from https://4ort.xyz/entity/frigyes-riesz
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BibTeX @misc{4ortxyz_frigyes-riesz_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Frigyes Riesz}}, year = {2026}, url = {https://4ort.xyz/entity/frigyes-riesz}, note = {Accessed: 2026-04-10}}
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