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Constant Mean Curvature Surfaces in Homogeneous Manifolds

Julia Plehnert

出版	Logos Verlag Berlin GmbH, 2012
主題	Mathematics / General
ISBN	38325320649783832532062
URL	http://books.google.com.hk/books?id=HvRHr8jLdZYC&hl=&source=gbs_api
EBook	SAMPLE

註釋

In this dissertation new constant mean curvature surfaces in homogeneous 3-manifolds are constructed. They arise as sister surfaces of Plateau solutions. The first example, a two-parameter family of MC H surfaces in ∑(k) x R with H ∈ [0,1/2] and k + 4H2 ≤ 0, has genus 0,2 k ends and k-fold dihedral symmetry, k ≥ 2. The existence of the minimal sister follows from the construction of a mean convex domain. The projection of the domain is non-convex. The second example is an MC 1/2 surface in H2 ∈ R with k ends, genus 1 and k-fold dihedral symmetry, k ≥ 3. One has to solve two period problems in the construction. The first period guarantees that the surface has exactly one horizontal symmetry. For the second period the control of a horizontal mirror curve proves the dihedral symmetry. For H=1/2 all surfaces are Alexandrov-embedded.