The three fibers question for homology balls
A question from Bulletin of the American Mathematical Society (2024). Problem G (Three Fibers Conjecture); inspected PDF p. 9.
Editorial MSC2020 classification. Original article codes and source evidence are recorded in the literature directory.
Problem statement
Can a Seifert-fibered integral homology sphere with more than three singular fibers bound a smooth integral homology 4-ball?
Lean 4
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Background
Editorial summary of Problem G (Three Fibers Conjecture); inspected PDF p. 9 in A survey of the homology cobordism group. Read the original for the full definitions and context.
Bulletin AMS 61 (2024), 119–157. Locators refer to the 32-page arXiv v4 author manuscript, not journal pagination.
Progress & source assessment
The source presents this question or research direction as unresolved at the time of writing. Current status has not been independently established. Source inspected on 2026-09-10; this date is a provenance check, not certification that the question remains open.
- [1]Oğuz Şavk. A survey of the homology cobordism group. Bulletin of the American Mathematical Society (2024). linkProblem G (Three Fibers Conjecture); inspected PDF p. 9
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