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Werner Gysin

Swiss mathematician (1915-1998)

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 1, 2025
Entity authorityQ7983400 ↗
Source-derived summary

Werner Gysin (15 July 1915 – 1998) was a Swiss mathematician who introduced the Gysin sequence and Gysin homomorphism in his only published paper (Gysin 1942).

Gysin obtained his Ph.D. from ETH Zurich in 1941 with a thesis written under the direction of Heinz Hopf

and Eduard Stiefel.

Editorial summary

“Werner Gysin” enters the record as swiss mathematician (1915-1998). Crown Archives preserves that source wording while asking what Werner, Gysin and Swiss can confirm, complicate or overturn.

Editorial reviewA useful biographical orientation record, particularly for establishing names, roles and a first chronology. The current lead gives the account dated anchors—1915, 1998, 1942, 1941—that can be checked directly. The linked authority record independently contributes the date 1915-07-18. Its strongest next move is a source search built around Werner, Gysin and Swiss.
Editorial analysis

Why this record matters

“Werner Gysin” is worth following because a concise public description often conceals a longer documentary argument. Here, Werner, Gysin and Swiss provides the most credible route into that argument.

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 Aug 1, 2025. The linked authority identifier is Q7983400. VIAF identifies the subject as 1887149719105411130007. 2 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1915, 1998, 1942 and 1941.

Critical limits

Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. 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.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

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 “Werner Gysin”, its source revision and the description used here.
  2. Expand the search: follow Werner Gysin primary sources, Werner Gysin archive and Werner 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

  1. Which source most directly establishes the central claim about “Werner Gysin”?
  2. Which claims depend on a single source or contested interpretation?
  3. How has the subject’s reputation changed across later accounts?
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Source & attribution

This entry incorporates text from “Werner Gysin” 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.