16 citations · 70 across the 19 of their papers we have counts for
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Classification of finite groups generated by reflections and rotations
Christian Lange, Marina A. Mikhailova
We survey the existing parts of a classification of finite groups generated by orthogonal transformations in a finite-dimensional Euclidean space whose fixed point subspace has cod…
When is the underlying space of an orbifold a manifold with boundary?
Christian Lange
We answer the question of when the underlying space of an orbifold is a manifold with boundary in several categories.
Characterization of finite groups generated by reflections and rotations
Christian Lange
We characterize finite groups G generated by orthogonal transformations in a finite-dimensional Euclidean space V whose fixed point subspace has codimension one or two in terms of…
Equivariant smoothing of piecewise linear manifolds
Christian Lange
We prove that every piecewise linear manifold of dimension up to four on which a finite group acts by piecewise linear homeomorphisms admits a compatible smooth structure with resp…