Twistor Motives I

Some time ago, kneemo pointed us to a lovely set of slides about Motives and Strings, by Jan Stienstra. Here is a sample:

Since then, Stienstra has written numerous papers on motives. A particularly nice example is this one, where twistor theorists will recognise the Plucker coordinates. Recall that these show up in association with the generalised determinants of the famous green book.