Alexis Roa Aguirre, who is an Assistant Professor at the Itajuba Federal University in Brazil, is visiting Mathematics this week (24-27 July). His host for the visit is Alessandro Torrielli and they are doing research together on the coupled Thirring model and the Sine-Gordon type dual model. His inspire page is here, and his google scholar page is here. Alexis will be giving a seminar on Friday on “Integrability and duality aspects of the coupled Thirring model“. The photo below show’s Alexis and Ale at the blackboard.