Title: Legendrian ribbons and strongly quasipositive links in an open book,
Abstract: We show that a link in an open book can be realized as a strongly
quasipositive braid if and only if it bounds a Legendrian ribbon with respect
to the associated contact structure. This generalizes a result due to Baader
and Ishikawa for links in the three-sphere. We highlight some related
techniques for determining whether or not a link is strongly quasipositive,
emphasizing applications to fibered links and satellites.