Titlebook: Discrete Geometry and Symmetry; Dedicated to Károly Marston D. E. Conder,Antoine Deza,Asia Ivi? Weiss Conference proceedings 2018 Springer

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,How to Distinguish a Super El Ni?o?,mmetric maniplexes, particularly those having maximal ‘rotational’ symmetry. This paper introduces an operation on polytopes and maniplexes which, in its simplest form, can be interpreted as twisting the connection between facets. This is first described in detail in dimension 4 and then generalized

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https://doi.org/10.1007/978-1-4419-6035-1examples 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 exte

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Super Sinne - Warum wir 32 davon habeneralize the classical . Desargues configuration and Danzer’s . configuration; moreover, their construction goes back to Cayley. We show that these configurations can be arranged in a triangular array which resembles the classical Pascal triangle also in the sense that it can be recursively generated

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https://doi.org/10.1007/978-3-662-68496-2 elements can be characterized as .. An integer of norm 1 is a .. In a . of integers the units span a 1-, 2-, 4-, or 8-dimensional lattice, the points of which are the vertices of a regular or uniform Euclidean honeycomb. A . is a group of linear fractional transformations whose coefficients are int

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