20F10 20E08 3 05C25,43A85 2 2-points homogeneous action,Gelfand pairs 2 20E99 2 20F65 2 20M30 2 20M35 2 43A90 2 68Q70 2 68R05 2 Rooted \(q\)-ary tree 2 Schreier graphs 2 automaton group 2 automaton groups 2 automaton semigroups 2 complexity 2 fractal group,labelling 2 orbital graphs 2 orbits 2 reversible 2 rigid vertex stabilizer 2 spherical functions 2 the Tower of Hanoi game 2 ultrametric space 2 word problem 2 20F69 1 Burnside groups 1 automata groups 1 branch groups 1