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    • Sandpiles, Spanning Trees, and Plane Duality 

      Chan, Melody; Glass, Darren; Macauley, Matthew; Perkinson, David; Werner, Caryn; Yang, Qiaoyu (Society for Industrial and Applied Mathematics, 2015-03-10)
      Let G be a connected, loopless multigraph. The sandpile group of G is a finite abelian group associated to G whose order is equal to the number of spanning trees in G. Holroyd et al. used a dynamical process on graphs ...