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Hexagonal Extensions of Toroidal Maps and Hypermaps

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Part of the book series: Springer Proceedings in Mathematics & Statistics ((PROMS,volume 234))

Abstract

The rank 3 concept of a hypermap has recently been generalized to a higher rank structure in which hypermaps can be seen as “hyperfaces” but very few examples can be found in literature. We study finite rank 4 structures obtained by hexagonal extensions of toroidal hypermaps. Many new examples are produced that are regular or chiral, even when the extensions are polytopal. We also construct a new infinite family of finite nonlinear hexagonal extensions of the tetrahedron.

Dedicated to Egon Schulte on the occasion of his 60th birthday

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Acknowledgements

The authors would like to thank two anonymous referees for their numerous helpful and insightful comments. This research was supported by a Marsden grant (UOA1218) of the Royal Society of New Zealand, by NSERC and by the Portuguese Foundation for Science and Technology (FCT-Fundação para a Ciência e a Tecnologia), through CIDMA - Center for Research and Development in Mathematics and Applications, within project UID/MAT/04106/2013.

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Correspondence to Dimitri Leemans .

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Fernandes, M.E., Leemans, D., Weiss, A.I. (2018). Hexagonal Extensions of Toroidal Maps and Hypermaps. In: Conder, M., Deza, A., Weiss, A. (eds) Discrete Geometry and Symmetry. GSC 2015. Springer Proceedings in Mathematics & Statistics, vol 234. Springer, Cham. https://doi.org/10.1007/978-3-319-78434-2_8

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