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math.GR2019
The icosahedra of edge length 1
Karl-Heinz Brakhage, Alice C. Niemeyer, Wilhelm Plesken +2
Retaining the combinatorial Euclidean structure of a regular icosahedron, namely the 20 equiangular (planar) triangles, the 30 edges of length 1, and the 12 different vertices toge…
math.GR2013★ 9 cited
Fast recognition of alternating groups of unknown degree
Sebastian Jambor, Martin Leuner, Alice C. Niemeyer +1
We present a constructive recognition algorithm to decide whether a given black-box group is isomorphic to an alternating or a symmetric group without prior knowledge of the degree…