Griffiths, PhillipPhillipGriffiths2022-08-042022-08-04https://hdl.handle.net/20.500.12111/8030Clay Lecture at the INI, June 2022. The lecture is based on joint work with Mark Green and Colleen Robles. Theme of the lecture is global properties of period mappings with applications to the geometry of completions of moduli spaces.en-USperiod mappingmoduli spacesalgebraic geometryLecture/speech