Kourovka Problem 20.125 - Noninjective Rota-Baxter Operator
Can a nonabelian group admit a Rota-Baxter operator that is surjective but not injective? A construction shows yes.
- Result
- Proved
- Status
- Resolved
- AI contribution
- AI-discovered
- Method
- Argument
- Field
- Group theory
- Posed by
- —
- Year posed
- 2022
- Years open
- 4y
- Solved
- 2026-07-20
- Model
- Aristotle
- Vendor
- Harmonic
- Collaborators
- —
- Verification
- Lean-verified
- Publication
- Preprint
- Significance
- 15 / 100
- Disclosed cost
- —
- Wikipedia
- No dedicated article
What the AI did
The solution was discovered autonomously by Aristotle and formalized in Lean; the human authors curated the exposition.
Verification
Autonomously discovered and formally verified in Lean by Aristotle; author-curated arXiv preprint covering eight Kourovka Notebook problems.
Source
arXiv:2607.17477 - On some problems from the Kourovka Notebook