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Fully truncated simplices and their monodromy groups

  • Leah Wrenn Berman , Barry Monson EMAIL logo , DĂ©borah Oliveros and Gordon I. Williams
Published/Copyright: January 24, 2018
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Abstract

We describe a simple way to manufacture faithful representations of the monodromy group of an n-polytope. This is used to determine the monodromy group for 𝓣n, the fully truncated n-simplex. As by-products, we get the minimal regular cover for 𝓣n, along with the analogous objects for a prism over a simplex.

MSC 2010: 20B25; 52B15

Communicated by: R. Weiss


Acknowledgements

We are most grateful to the Banff International Research Station for hosting two conferences related to discrete geometry (15w5019 and 15w2177) in February, 2015. While there, we profited greatly from the comments of Daniel Pellicer, Mark Mixer and several others. We also thank the referee for many useful comments. This project began under the marvelous backdrop of the Kaleidoscope Conference in honour of Javier Bracho, Ixtapa, México, May, 2014.

  1. Funding: The first author was supported by a grant from the Simons Foundation (#S15060 to L. Berman). The second author was supported in part by the NSERC of Canada Discovery Grant # 4818. The third author wishes to acknowledge support from grant projects PAPIIT 104915 and CONACyT 166306.

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Received: 2015-11-15
Revised: 2016-4-12
Published Online: 2018-1-24
Published in Print: 2018-4-25

© 2018 Walter de Gruyter GmbH, Berlin/Boston

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