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OP-10090Geometry and topologyStatus unassessed

Torsion and the torsion-free quotient of homology cobordism

A question from Bulletin of the American Mathematical Society (2024). Problem O; inspected PDF p. 13.

Oğuz Şavk — A survey of the homology cobordism group· Journal question · editorial summary

OP-10089Geometry and topologyStatus unassessed

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.

Oğuz Şavk — A survey of the homology cobordism group· Journal question · editorial summary

OP-10088Geometry and topologyStatus unassessed

Seifert spheres bounding homology balls but no contractible manifold

A question from Bulletin of the American Mathematical Society (2024). Problem F; inspected PDF p. 9.

Oğuz Şavk — A survey of the homology cobordism group· Journal question · editorial summary

OP-10087Geometry and topologyStatus unassessed

Is the integral homology cobordism group free abelian?

A question from Bulletin of the American Mathematical Society (2024). Problem A; inspected PDF p. 5.

Oğuz Şavk — A survey of the homology cobordism group· Journal question · editorial summary