https://neckpinch.com/authors/henry-wood/New arXiv papers by Henry Wood, from Neckpinch Tue, 03 Nov 2026 08:41:12 GMT https://neckpinch.com/papers/2611.02477/arxiv:2611.02477Mon, 02 Nov 2026 00:00:00 GMTHenry Wood — We show that Ricci flows of invariant metrics on twisted principal bundles with nilpotent fibres over S¹ are immortal and type III. After normalisation and lift to the universal cover, a sequence of metrics converges in the Cheeger–Gromov topology to a homogeneous expanding Ricci soliton. The proof extends the bracket flow technique from homogeneous Ricci flows to invariant Ricci flows on twisted principal bundles.Ricci flowRicci solitonsHomogeneous spacesLong-time existence & convergence