Abstract
A Ricci surface is defined to be a Riemannian surface \(({\varvec{M}},{\varvec{g}}_{\varvec{M}})\) whose Gauss curvature \({\varvec{K}}\) satisfies the differential equation \({\varvec{K}}\varvec{\Delta } {\varvec{K}} + {\varvec{g}}_{\varvec{M}}\left( {{\textbf {d}}{\varvec{K}}},{{\textbf {d}}{\varvec{K}}}\right) + {\textbf {4}}{\varvec{K}}^{\textbf {3}}={\textbf {0}}\). In the case where \({\varvec{K}}<{\textbf {0}}\), this equation is equivalent to the well-known Ricci condition for the existence of minimal immersions in \({\mathbb {R}}^3\). Recently, Andrei Moroianu and Sergiu Moroianu proved that a Ricci surface with non-positive Gauss curvature admits locally an isometric minimal immersion into \({\mathbb {R}}^3\). In this paper, we are interested in studying non-compact orientable Ricci surfaces with non-positive Gauss curvature. Firstly, we give a definition of catenoidal end for non-positively curved Ricci surfaces. Secondly, we develop a tool which can be regarded as an analogue of the Weierstrass data to obtain some classification results for non-positively curved Ricci surfaces of genus zero with catenoidal ends. Furthermore, we also give an existence result for non-positively curved Ricci surfaces of arbitrary positive genus which have finite catenoidal ends.
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Acknowledgements
The author wishes to express his gratitude to his supervisor, Prof. Benoît Daniel, for his helpful discussions and encouragement. The author also sincerely thanks the reviewer for his valuable comments and insightful suggestions, which lead to further improvement of this article.
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Zang, Y. Non-positively curved Ricci Surfaces with catenoidal ends. manuscripta math. 172, 531–565 (2023). https://doi.org/10.1007/s00229-022-01426-7
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DOI: https://doi.org/10.1007/s00229-022-01426-7