Contents 參考書目 口試合格証明 Part I. An estimate for Gaussian Curvature of a constant Mean Curvature surface 1. The Delaunay surface 2. A comparison Theorem 3. Proof of the Main Theorem Part II. The convexity of the First Eigen Function for the Laplacian on a curved surface 1. Introduction 2. The covariant differentiation and its chain rule 3. Higher order covariant derivatives of a function 4. The proof of Theorem 1 5. The proof of Theorem 2
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