2 papers
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.RA2013
Computing generators of the unit group of an integral abelian group ring
Paolo Faccin, Willem A. de Graaf, Wilhelm Plesken
We describe an algorithm for obtaining generators of the unit group of the integral group ring ZG of a finite abelian group G. We used our implementation in Magma of this algorithm…