- Costa's minimal surface
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Costa's minimal surface, cropped by a sphere. Higher resolution video
In mathematics, Costa's minimal surface is an embedded minimal surface and was discovered in 1982 by the Brazilian mathematician Celso Costa. It is also a surface of finite topology, which means that it can be formed by puncturing a compact surface. Topologically, it is a thrice-punctured torus.
Until its discovery, only the plane, helicoid and the catenoid were believed to be embedded minimal surfaces that could be formed by puncturing a compact surface. The Costa surface evolves from a torus, which is deformed until the planar end becomes catenoidal. Defining these surfaces on rectangular tori of arbitrary dimensions yields the Costa surface. Its discovery triggered research and discovery into several new surfaces and open conjectures in topology.
The Costa surface can be described using the Weierstrass zeta and the Weierstrass elliptic functions.
References
- Costa, Celso (1982). Imersões mínimas completas em
de gênero um e curvatura total finita. Ph.D. Thesis, IMPA, Rio de Janeiro, Brazil.
- Costa, Celso (1984). Example of a complete minimal immersion in
of genus one and three embedded ends. Bol. Soc. Bras. Mat. 15, 47–54.
- Weisstein, Eric W.. "Costa Minimal Surface.". http://mathworld.wolfram.com/CostaMinimalSurface.html. Retrieved 2006-11-19. From MathWorld--A Wolfram Web Resource.
This topology-related article is a stub. You can help Wikipedia by expanding it. - Costa, Celso (1982). Imersões mínimas completas em