Congratulations to Joakim Strömvall for passing his PhD viva. The viva took place today (Tuesday 10 December). The External Examiner was Niall MacKay (University of York), the Internal Examiner was Jan Gutowski. The PhD project supervisor is Alessandro Torrielli, and the thesis title is: “Hopf superalgebras and scattering matrices in the AdS3/CFT2 correspondence“. The photo below shows Joakim with his supervisor Alessandro after the viva (photo credit: Matt Turner).