Topological Quantum Field Theories ----------------------------------------- http://gecogedi.dimai.unifi.it/seminar/194/ Date: Wednesday, Mar 11, 2015 Time: 18:00 Place: Sala Seminari, Dipartimento di matematica, Pisa Speaker: Carlo Collari Seminari dei Baby-Geometri Abstract. Topological Quantum Field Theories (TQFTs for short) were axiomatized by Atiyah in 1988 ([1]). Following his exposition, we will define the concept of TQFT and give some examples. In particular, we will describe the (1+1)-TQFTs and their algebraic counterparts, the Frobenius algebras. Time permitting we will give some more examples in higher dimension. [1] M. Atiyah, /Topological Quantum Field Theory/, Publications Mathématiques de l'IHÉS 68 (68): 175–186