You are cordially invited to the Algebra seminar on Wed 4 December at 13:40 in the FENS building on Sabancı Campus in room G035. Ayesha Qureshi: Polyomino ideals Abstracts and forthcoming talks can be found on our webpage <http://people.sabanciuniv.edu/~mlavrauw/algebra_seminar/sas.html>. Kind regards, Michel Lavrauw