English

A Symbolic coding of the Morse boundary

Group Theory 2018-11-27 v1

Abstract

Let XX be a proper geodesic metric space. We give a new construction of the Morse Boundary that realizes its points as equivalence classes of functions on XX which behave similar to the "distance to a point" function. When G=SG=\langle S \rangle is a finitely generated group and X=Cay(G,S)X=Cay(G,S), we use this construction to give a symbolic presentation of the Morse boundary as a space of "derivatives" on Cay(G,S).Cay(G,S). The collection of such derivatives naturally embeds in the shift space AG\mathcal{A}^G for some finite set A.\mathcal{A}.

Keywords

Cite

@article{arxiv.1811.10383,
  title  = {A Symbolic coding of the Morse boundary},
  author = {Abdalrazzaq Zalloum},
  journal= {arXiv preprint arXiv:1811.10383},
  year   = {2018}
}