Geodesic growth in right-angled and even Coxeter groups
  The objective of this paper is to detect which combinatorial properties of a regular graph can completely determine the geodesic growth of the right-angled Coxeter or Artin group this graph defines, and to provide the first examples of right-angled and even Coxeter groups with the same geodesic growth series. 
Yago Antol\'in and Laura Ciobanu
math.GR math.CO