6 problems
Let be a finite graph with designated sink vertex , and let denote the stationary average density for the -toppling rule, where and…
Maximum periodicity conjecture. The maximum periodicity of any vertex in each listed fractal graph is given by the corresponding value above.
Perrot–Pham's conjecture. The polynomial is independent of the choice of the sink vertex .
Let be a decoration of a -regular tree, and let be the generating function for weighted clusters containing the origin. Let denote the exponential growth fa…
Let be an infinite -regular tree, and let be a graph quasi-isometric to , including a decoration of . The cell-wise first-wave critical expone…
Let be an infinite -regular tree, and let be a graph quasi-isometric to , including a decoration of . A critical exponent is the power-law exp…