The minding formula and its applications

Yi Fang*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    We apply the Minding Formula for geodesic curvature and the Gauss-Bonnet Formula to calculate the total Gaussian curvature of certain 2-dimensional open complete branched Riemannian manifolds, the script M sign surfaces. We prove that for an script M sign surface the total curvature depends only on its Euler characteristic and the local behaviour of its metric at ends and branch points. Then we check that many important surfaces, such as complete minimal surfaces in ℝn with finite total curvature complete constant mean curvature surfaces in hyperbolic 3-space H3(-1) with finite total curvature, are actually branch point free script M sign surfaces. Therefore as corollaries we give simple proofs of some classical theorems such as the Chern-Osserman theorem for complete minimal surfaces in ℝn with finite total curvature. For the reader's convenience, we also derive the Minding Formula.

    Original languageEnglish
    Pages (from-to)473-480
    Number of pages8
    JournalArchiv der Mathematik
    Volume72
    Issue number6
    DOIs
    Publication statusPublished - 1999

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