{ "id": "2107.08354", "version": "v1", "published": "2021-07-18T03:38:03.000Z", "updated": "2021-07-18T03:38:03.000Z", "title": "$\\mathrm{K}$-cowaist on complete foliated manifolds", "authors": [ "Guangxiang Su", "Xiangsheng Wang" ], "comment": "8 pages, comments are welcome!", "categories": [ "math.DG" ], "abstract": "Let $(M,F)$ be a connected (not necessarily compact) foliated manifold carrying a complete Riemannian metric $g^{TM}$. We generalize Gromov's $\\mathrm{K}$-cowaist using the coverings of $M$, as well as defining a closely related concept called $\\widehat{\\mathrm{A}}$-cowaist. Let $k^F$ be the associated leafwise scalar curvature of $g^F = g^{TM}|_F$. We obtain some estimates on $k^F$ using these two concepts. In particular, assuming that the generalized $\\mathrm{K}$-cowaist is infinity and either $TM$ or $F$ is spin, we show that $\\inf(k^F)\\leq 0$.", "revisions": [ { "version": "v1", "updated": "2021-07-18T03:38:03.000Z" } ], "analyses": { "subjects": [ "58J20", "53C21", "53C12" ], "keywords": [ "complete foliated manifolds", "complete riemannian metric", "associated leafwise scalar curvature", "generalize gromovs", "closely related concept" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }