Sectional monodromy groups of projective curves by Borys Kadets (2018, revised 2020)

Author preprint: arxiv.org/abs/1809.07293v4

Full text: arxiv.org/pdf/1809.07293

Proposition 1.1 and Remark 3.5 give full symmetric sectional monodromy in characteristic zero; Lemma 2.2 proves double transitivity. DOI of the journal publication: doi.org/10.1112/jlms.12375