{ "id": "1010.2986", "version": "v2", "published": "2010-10-14T17:29:25.000Z", "updated": "2013-05-01T13:02:06.000Z", "title": "On the partial Ricci curvature of foliations", "authors": [ "Vladimir Rovenski" ], "comment": "20 pages", "categories": [ "math.DG" ], "abstract": "We consider a problem of prescribing the partial Ricci curvature on a locally conformally flat manifold $(M^n, g)$ endowed with the complementary orthogonal distributions $D_1$ and $D_2$. We provide conditions for symmetric $(0,2)$-tensors $T$ of a simple form (defined on $M$) to admit metrics $\\tilde g$, conformal to $g$, that solve the partial Ricci equations. The solutions are given explicitly. Using above solutions, we also give examples to the problem of prescribing the mixed scalar curvature related to $D_i$. In aim to find \"optimally placed\" distributions, we calculate the variations of the total mixed scalar curvature (where again the partial Ricci curvature plays a key role), and give examples concerning minimization of a total energy and bending of a distribution.", "revisions": [ { "version": "v2", "updated": "2013-05-01T13:02:06.000Z" } ], "analyses": { "subjects": [ "53C12" ], "keywords": [ "foliations", "partial ricci curvature plays", "partial ricci equations", "total mixed scalar curvature", "complementary orthogonal distributions" ], "publication": { "doi": "10.1016/j.geomphys.2014.09.003", "journal": "Journal of Geometry and Physics", "year": 2014, "month": "Dec", "volume": 86, "pages": 370 }, "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014JGP....86..370R" } } }