3 citations · 5 across the 2 of their papers we have counts for
2 papers
math.GR2005★ 3 cited
Injections of Artin groups
Robert W. Bell, Dan Margalit
We study those Artin groups which, modulo their centers, are finite index subgroups of the mapping class group of a sphere with at least 5 punctures. In particular, we show that an…
math.GT2004★ 2 cited
Braid groups are almost co-Hopfian
Robert W. Bell, Dan Margalit
Let B_n be the braid group on n > 3 strands. We prove that B_n modulo its center is co-Hopfian. We then show that any injective endomorphism of B_n is geometric in the sense that i…