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Zip-Pair


A pair of zips, each zip being half a zipper, which can be zippered up to close a surface along a curve. The concept of a zip-pair can be extremely useful in topological arguments, and zips can be used to illustrate the construction of the cap, cross-cap, handle, and cross-handle.


See also

Zip

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References

Francis, G. K. and Weeks, J. R. "Conway's ZIP Proof." Amer. Math. Monthly 106, 393-399, 1999.

Referenced on Wolfram|Alpha

Zip-Pair

Cite this as:

Weisstein, Eric W. "Zip-Pair." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Zip-Pair.html

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