Presentations of surface braid groups by graphs
Tom 188 / 2005
Fundamenta Mathematicae 188 (2005), 1-20
MSC: Primary 20F36; Secondary 20F05.
DOI: 10.4064/fm188-0-1
Streszczenie
We extend and generalise Sergiescu's results on planar graphs and presentations for the braid group $B_n$ to other topological generalisations of $B_n$.