Licata, JoanSabloff, Joshua M2015-12-100030-8730http://hdl.handle.net/1885/68279Rationally null-homologous links in Seifert fibered spaces may be represented combinatorially via labeled diagrams. We introduce an additional condition on a labeled link diagram and prove that it is equivalent to the existence of a rational Seifert surface for the link. In the case when this condition is satisfied, we generalize Seifert's algorithm to explicitly construct a rational Seifert surface for any rationally null-homologous link. As an application of the techniques developed in the paper, we derive closed formulae for the rational Thurston-Bennequin and rotation numbers of a rationally null-homologous Legendrian knot in a contact Seifert fibered space.Author/s retain copyrightKeywords: Legendrian knot; Seifert fibered space; Seifert surface201210.2140/pjm.2012.258.1992016-02-24