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A Six-Vertex Theorem for Bounding Normal Planar Curves |
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| Authors: | Cairns Grant; McIntyre Margaret; Ozdemir Mehmet |
| Affiliation: | Department of Mathematics, La Trobe University Melbourne, Australia Department of Mathematics, University of Erciyes 38039 Kayseri, Turkey |
| Abstract: | We prove that the number of vertices of a smooth normal planarcurve is at least 6, if it bounds a surface other than the disk. |
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