Remarks on Exact G-Structures on Compact Manifolds
arXiv:2202.04240
Abstract
An important open question in G geometry concerns whether or not a compact seven-manifold can support an exact G-Structure. Given the significance of this question we initiate a study of exact G-Structures on compact manifolds. We focus on exact G-Structures subject to no additional constraints but we also consider the relationship between the exact condition and other conditions for closed G-Structures such as the Extremally Ricci-Pinched and Laplacian Soliton conditions.
19 pages