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Nikola Obreshkov

Bulgarian mathematician (1896-1963)

Correspondence, annotated notebooks and portrait silhouettes prepared for research
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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionNov 10, 2025
Entity authorityQ11108992 ↗
Source-derived summary

Nikola Dimitrov Obreshkov (Bulgarian: Никола Димитров Обрешков; March 6, 1896 in Varna – August 11, 1963 in Sofia) was a prominent Bulgarian mathematician, working in complex analysis.

See also

Obreschkoff–Ostrowski theorem

References

European Mathematics Society Newsletter No. 51 (PDF), page 28.

Editorial summary

The public source identifies “Nikola Obreshkov” as bulgarian mathematician (1896-1963). This brief keeps that definition visible, then builds a research path around Nikola, Obreshkov and Bulgarian.

Editorial reviewA productive starting point for separating a subject’s documented career from later reputation and commemoration. The current lead gives the account dated anchors—1896, 1963—that can be checked directly. The linked authority record independently contributes the date 1896-03-06. Its value is orientation rather than verdict, with Nikola, Obreshkov and Bulgarian providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Nikola Obreshkov”, the useful work is to connect “bulgarian mathematician (1896-1963)” to the records capable of establishing context and consequence.

Evidence profile

Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Nov 10, 2025. The linked authority identifier is Q11108992. VIAF identifies the subject as 32499941. The Library of Congress control number is n84804628. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1896 and 1963.

Critical limits

Later biographies can compress uncertainty and repeat inherited reputations, so apparently settled claims may still require comparison. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

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  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
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Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Nikola Obreshkov”, its source revision and the description used here.
  2. Expand the search: follow Nikola Obreshkov primary sources, Nikola Obreshkov archive and Nikola research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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  3. How has the subject’s reputation changed across later accounts?
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Source & attribution

This entry incorporates text from “Nikola Obreshkov” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.