33 citations · 172 across the 25 of their papers we have counts for
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math.GR2014★ 3 cited
Even More Infinite Ball Packings from Lorentzian Root Systems
Hao Chen
Boyd (1974) proposed a class of infinite ball packings that are generated by inversions. Later, Maxwell (1983) interpreted Boyd's construction in terms of root systems in Lorentz s…
math.GR2014★ 8 cited
Limit Directions for Lorentzian Coxeter Systems
Hao Chen, Jean-Philippe Labbé
Every Coxeter group admits a geometric representation as a group generated by reflections in a real vector space. In the projective representation space, limit directions are limit…