{ "id": "1903.06734", "version": "v1", "published": "2019-03-15T18:25:03.000Z", "updated": "2019-03-15T18:25:03.000Z", "title": "Conformal Killing forms on nearly Kähler manifolds", "authors": [ "Antonio M. Naveira", "Uwe Semmelmann" ], "comment": "10 pages", "categories": [ "math.DG" ], "abstract": "We study conformal Killing forms on compact 6-dimensional nearly K\\\"ahler manifolds. Our main result concerns forms of degree 3. Here we give a classification showing that all conformal Killing 3-forms are linear combinations of $d \\omega$ and its Hodge dual $* d\\omega$ where $\\omega$ is the fundamental 2-form of the nearly K\\\"ahler structure. The proof is based on a fundamental integrability condition for conformal Killing forms. We have partial results in the case of conformal Killing 2-forms. In particular we show the non-existence of J-anti-invariant Killing 2-forms.", "revisions": [ { "version": "v1", "updated": "2019-03-15T18:25:03.000Z" } ], "analyses": { "subjects": [ "53C10", "53C15", "58J50" ], "keywords": [ "kähler manifolds", "main result concerns forms", "study conformal killing forms", "fundamental integrability condition", "partial results" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }