Affiliation:
1. Faculty of Mechanics and Mathematics, Department of Geometry and Topology, Lomonosov Moscow State University, Russia
Abstract
We study quasirational (QR) presentations of (pro-[Formula: see text])groups, which contain aspherical presentations and their subpresentations, and also still mysterious pro-[Formula: see text]-groups with a single defining relation. Using schematization of QR-presentations and embedding of the rationalized module of relations into a diagram related to a certain prounipotent crossed module, we derive cohomological properties of pro-[Formula: see text]-groups with a single defining relation.
Publisher
World Scientific Pub Co Pte Lt
Subject
Algebra and Number Theory