{ "id": "2310.19315", "version": "v2", "published": "2023-10-30T07:24:52.000Z", "updated": "2023-11-06T03:39:39.000Z", "title": "Positivity of exterior products of tangent bundles and their subsheaves", "authors": [ "Yuting Liu" ], "categories": [ "math.AG" ], "abstract": "S. Kov\\'acs proposed a conjecture on rigidity results induced by ample subsheaves of some exterior power of tangent bundles for projective manifolds. We verify the conjecture in the case of second exterior products under a rank condition. Besides, we prove a structure theorem satisfied by projective manifolds whose third exterior power of tangent bundle is nef following the approach of K. Watanabe.", "revisions": [ { "version": "v2", "updated": "2023-11-06T03:39:39.000Z" } ], "analyses": { "keywords": [ "tangent bundle", "positivity", "projective manifolds", "second exterior products", "third exterior power" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }