Are hyperbolic one-relator groups virtually compact special?
Theorem 1.1: every word-hyperbolic one-relator group is virtually compact special. Theorem 1.2: every hyperbolic ascending mapping torus of an injective endomorphism of a finitely generated free group is virtually compact special. With Kielak-Linton, every hyperbolic one-relator group is virtually free-by-cyclic (kernel possibly of infinite rank in the subgroup-closed sense, with a finite-index embedding in a free-by- group with finitely generated kernel), which is Wise's Conjecture 17.8 for this class, and every hyperbolic one-relator group is residually finite and linear over . It says nothing about non-hyperbolic one-relator groups. Consistent with the release's non-residually-finite hyperbolic group (catalog entry on residual finiteness), which is not one-relator.
Exact FrontierDelta
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Occurred: Sep 25, 2026
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: unreviewed. Publication: announcement. AI contribution: ai-discovered. VibeMathed editorial classifications, scores, notes, relations, and dataset structure are CC BY 4.0. Source statements and linked content retain their own rights.
Canonical aliases: Are hyperbolic one-relator groups virtually compact special? · Hyperbolic one-relator groups special
Confidence: Not scored
Registry verification: unreviewed · announcement · candidate
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VibeMathed
registry · event recorded by
Unreleased internal OpenAI model
model · ai model contributor · OpenAI
Lineage and corrections
Wise, The cubical route to understanding groups (ICM 2014) evidence for this event
Companion: Virtual compact specialness of hyperbolic one-relator groups evidence for this event
This event attributed to Unreleased internal OpenAI model
Theorem 1.1: every word-hyperbolic one-relator group is virtually compact special. Theorem 1.2: every hyperbolic ascending mapping torus of an injective endomorphism of a finitely generated free group is virtually compact special. With Kielak-Linton, every hyperbolic one-relator group is virtually free-by-cyclic (kernel possibly of infinite rank in the subgroup-closed sense, with a finite-index embedding in a free-by- group with finitely generated kernel), which is Wise's Conjecture 17.8 for this class, and every hyperbolic one-relator group is residually finite and linear over . It says nothing about non-hyperbolic one-relator groups. Consistent with the release's non-residually-finite hyperbolic group (catalog entry on residual finiteness), which is not one-relator. parent of this event
Are hyperbolic one-relator groups virtually compact special? parent of this event
Gersten's conjecture: are Baumslag-Solitar-free one-relator groups hyperbolic? evidence for this event
VibeMathed record: Are hyperbolic one-relator groups virtually compact special? evidence for this event
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