Amplitudes and Correlators as Canonical Forms; Worldsheets as Positive Geometries

          @misc{ scivideos_strings:20171032,
            doi = {},
            url = {https://www.youtube.com/watch?v=8ts9l0-0sxI},
            author = {},
            keywords = {},
            language = {en},
            title = {Amplitudes and Correlators as Canonical Forms; Worldsheets as Positive Geometries},
            publisher = {},
            year = {},
            month = {},
            note = {strings:20171032 see, \url{https://scivideos.org/index.php/strings-conferences/20171032}}
          }