Every finite perfect two-sided skew brace decomposes as a central product of an almost trivial skew brace and a trivial skew brace, both arising from perfect groups, with perfectness equivalent for the brace and either underlying group.
Ballester-Bolinches, R
2 Pith papers cite this work. Polarity classification is still indexing.
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An analogue of Pappus's hexagon theorem holds for geodesic cylinders and helix-like geodesics in Nil geometry.
citing papers explorer
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Cylinder-like Pappus's hexagon theorem in Nil geometry
An analogue of Pappus's hexagon theorem holds for geodesic cylinders and helix-like geodesics in Nil geometry.