Periodic Trees and Propictures
نویسندگان
چکیده
Periodic tree are combinatorial structures which are in bijection with cluster tilting objects of affine type Ãn−1. The internal edges of the tree encode the c-vectors corresponding to the cluster tilting object. (See [8].) In this paper we assign a unipotent matrix to each tree, giving the relationship between cluster tilting objects and (pro)pictures for torsion-free (pro)nilpotent groups.
منابع مشابه
Periodic Points
B-spaces are a class of uniquely arcwise connected generalized continua, containing trees. In this paper, it is shown that a main result obtained by several authors for existence of periodic points of small periods of mappings of trees is also true for B-spaces.
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