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Pinwheels and bypasses

Ko Honda·William H. Kazez·Gordana Matic
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Abstract

We give a necessary and sufficient condition for the addition of a collection of disjoint bypasses to a convex surface to be universally tight -- namely the nonexistence of a polygonal region which we call a virtual pinwheel.

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Ko Honda, William H. Kazez, Gordana Matic. 2005-07-26. Pinwheels and bypasses. https://doi.org/10.2140/agt.2005.5.769

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