https://neckpinch.com/authors/robert-wolak/New arXiv papers by Robert Wolak, from Neckpinch Tue, 10 Nov 2026 04:10:28 GMT https://neckpinch.com/papers/1905.07704/arxiv:1905.07704Sun, 19 May 2019 00:00:00 GMTVladimir Rovenski, Robert Wolak — In the paper we introduce new metric structures on g-foliations that are less rigid than the well-known structures: almost contact and 3-quasi-Sasakian structures as well as f-structures with parallelizable kernel and almost para-φ-structures with complemented frames. We discuss the properties of the new structures in order to demonstrate similarities with the corresponding classical structures. Then using the flow of metrics on a g-foliation, we build deformation retraction of our structures with positive partial Ricci curvature onto the subspace of the aforementioned classical structures.Ricci flowSasakian & contact geometry