Griffiths, PhillipPhillipGriffithsGreen, MarkMarkGreenRobles, ColleenColleenRobles2020-03-302020-03-302020https://hdl.handle.net/20.500.12111/7902Outline I. Introduction II. Extension data for a mixed Hodge structure III. Extension data for limiting mixed Hodge structures IV. Period mappings to extension data (A) V. Period mappings to extension data (B) Appendix to Sections IV and V: Examples VI. Local Torelli conditions VII. Global structure of period mappings from complete surfacesHodge structuresperiod mappingsLecture/speech