Hamza Hafsi Postdoc / Guest Name Dr. H. Hafsi Telephone +31 71 527 2727 E-mail h.hafsi@math.leidenuniv.nl Postdoc / Guest Science Mathematisch Instituut Mathematisch Instituut Work address Gorlaeus Building Einsteinweg 55 2333 CC Leiden Contact +31 71 527 2727 h.hafsi@math.leidenuniv.nl No relevant ancillary activities