Pure braid subgroups of braided Thompson's groups - Brady, Tom (Dublin City University. Department of Mathematics) ; Burillo Puig, Josep (Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada IV) ; Cleary, Sean (The City College of New York & The CUNY Graduate Center. Department of Mathematics) ; Stein, Melanie (Trinity College. Department of Mathematics)