English

Directions and scale-multiplicative semigroups in restricted Burger-Mozes groups

Group Theory 2019-12-06 v2

Abstract

We study the scale function, space of directions and scale-multiplicative semigroups for restricted Burger-Mozes groups. We relate these general notions to intrinsic properties of the group. Among other things, we give a formula for the scale function; relate the space of directions to both the action on the tree and an action on a CAT(0)\operatorname{CAT}(0) cube complex; and construct maximal scale-multiplicative semigroups from the space of directions.

Keywords

Cite

@article{arxiv.1911.08032,
  title  = {Directions and scale-multiplicative semigroups in restricted Burger-Mozes groups},
  author = {Timothy P. Bywaters},
  journal= {arXiv preprint arXiv:1911.08032},
  year   = {2019}
}

Comments

45 pages, V2: minor typographical errors corrected

R2 v1 2026-06-23T12:20:08.032Z