Title: Symbolic computation, combinatorics, and modular forms Speaker: Peter Paule Abstract: The common thread of the talk concerns computational interpretations (resp. refinements) of mathematical theorems and methods in the fields of combinatorics and additive number theory. The starting point is an algorithmic revitalization (joint with George Andrews and Axel Riese) of partition analysis, a combinatorial method invented by MacMahon more than a hundred years ago. Corresponding computer algebra software led to the discovery of a new combinatorial construction of modular forms, which in turn gave rise to new number-theoretic congruences satisfied by partition numbers. Part two of the talk describes new algorithmic developments (by Cristian-Silviu Radu and also in joint work with Radu) in the theory of modular forms that allow new proof methods for related q-series identities, including a new unified proving frame for the celebrated families of partition congruences modulo powers of 5, 7, and 11 discovered by Ramanujan.