GT-shadows for the gentle version of the Grothendieck-Teichmueller group

Vasily A. Dolgushev, Jacob J. Guynee

Let $B_3$ be the Artin braid group on 3 strands and $P{B}_3$ be the corresponding pure braid group. In this paper, we construct the groupoid $GTSh$ of GT-shadows for a (possibly more…