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Groups acting on treesSubgroups of p-groupsTrees in groups of exponential growthDo all possible trees arise...

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Groups acting on trees Subgroups of p-groupsTrees in groups of exponential growthDo all possible trees arise as orbit trees of some permutation groups?Subgroups of amenable periodic groups Is there a better description of this class of discrete groups?Groups acting on non-locally-finite trees with independence and specified local actionsWhich finite simple groups can be characterized by their action on a small set?On $ p $-groups with at least one element of order $ p^{2} $Group acting freely on treeFinite groups containing no subgroups of a given order or index 6 1 $begingroup$ Assume that X is a tree such that every vertex has infinite degree. And a discrete group G acts on this tree properly (with finite stabilizers) and transitively. Is it true that G contains a non- abelian free subgroup? ...