Abstract
In this article we investigate length decreasing maps \(f:M\rightarrow N\) between Riemannian manifolds \(M\), \(N\) of dimensions \(m\ge 2\) and \(n\), respectively. Assuming that \(M\) is compact and \(N\) is complete such that
where \(\sigma \), \(\mu \) are positive constants, we show that the mean curvature flow provides a smooth homotopy of \(f\) into a constant map.
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Chau, A., Chen, J., He, W.: Lagrangian mean curvature flow for entire Lipschitz graphs. Calc. Var. Partial Differ. Equ. 44, 199–220 (2012)
Guth, L.: Contraction of areas vs. topology of mappings. Geom. Funct. Anal. 23, 1804–1902 (2013)
Guth, L.: Homotopy non-trivial maps with small \(k\)-dilation, pp. 1–7. arXiv:0709.1241v1 (2007)
Hamilton, R.: Three-manifolds with positive Ricci curvature. J. Differ. Geom. 17, 255–306 (1982)
Lee, K.-W., Lee, Y.-I.: Mean curvature flow of the graphs of maps between compact manifolds. Trans. Am. Math. Soc. 363, 5745–5759 (2011)
Nash, J.: The imbedding problem for Riemannian manifolds. Ann. Math. 63(2), 20–63 (1956)
Savas-Halilaj, A., Smoczyk, K.: Homotopy of area decreasing maps by mean curvature flow. Adv. Math. 255, 455–473 (2014)
Savas-Halilaj, A., Smoczyk, K.: Bernstein theorems for length and area decreasing minimal maps. Calc. Var. Partial Differ. Equ. 50, 549–577 (2014)
Smoczyk, K., Tsui, M.-P., Wang, M.-T.: Curvature decay estimates of graphical mean curvature flow in higher co-dimensions, pp. 1–17. arXiv:1401.4154 (2014)
Smoczyk, K.: Mean curvature flow in higher codimension-Introduction and survey. Global Differential Geometry. Springer Proceedings in Mathematics, vol. 12, pp. 231–274 (2012)
Smoczyk, K.: Long-time existence of the Lagrangian mean curvature flow. Calc. Var. Partial Differ. Equ. 20, 25–46 (2004)
Tsui, M.-P., Wang, M.-T.: Mean curvature flows and isotopy of maps between spheres. Comm. Pure Appl. Math. 57, 1110–1126 (2004)
Wang, M.-T.: Long-time existence and convergence of graphic mean curvature flow in arbitrary codimension. Invent. Math. 148, 525–543 (2002)
White, B.: A local regularity theorem for mean curvature flow. Ann. Math. 161(2), 1487–1519 (2005)
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The first author is supported financially by the grant \(E\Sigma \Pi A\): PE1-417.
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Savas-Halilaj, A., Smoczyk, K. Evolution of contractions by mean curvature flow. Math. Ann. 361, 725–740 (2015). https://doi.org/10.1007/s00208-014-1090-y
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DOI: https://doi.org/10.1007/s00208-014-1090-y