Pierfrancesco Dionigi PhD candidate / Guest Name P. Dionigi MSc Telephone +31 71 527 2727 E-mail p.dionigi@math.leidenuniv.nl PhD candidate / Guest Science Mathematisch Instituut Mathematisch Instituut Work address Gorlaeus Building Einsteinweg 55 2333 CC Leiden Contact +31 71 527 2727 p.dionigi@math.leidenuniv.nl Publications No relevant ancillary activities