Английская Википедия:Chen–Gackstatter surface

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Файл:Chen-Gackstatter-Thayer surfaces.png

The first nine Chen–Gackstatter surfaces.

In differential geometry, the Chen–Gackstatter surface family (or the Chen–Gackstatter–Thayer surface family) is a family of minimal surfaces that generalize the Enneper surface by adding handles, giving it nonzero topological genus.

They are not embedded, and have Enneper-like ends. The members <math>M_{ij}</math> of the family are indexed by the number of extra handles i and the winding number of the Enneper end; the total genus is ij and the total Gaussian curvature is <math>-4\pi(i+1)j</math>. It has been shown that <math>M_{11}</math> is the only genus one orientable complete minimal surface of total curvature <math>-8\pi</math>.

It has been conjectured that continuing to add handles to the surfaces will in the limit converge to the Scherk's second surface (for j = 1) or the saddle tower family for j > 1.

External links

• The Chen–Gackstatter Thayer Surfaces at the Scientific Graphics Project [1]
• Chen–Gackstatter Surface in the Minimal Surface Archive [2]
• Xah Lee's page on Chen–Gackstatter [3]