On Nov. 27th, Professor Lam Siu-Por from Southeast University was invited to give a talk at Tianjin University. The title is “How to compute the KO^* of a product.” In the talk, Professor Lam discussed methods to develop the Künneth formula, which is a basic property of singular cohomology theory, in a generalized cohomology theory called KO^* theory.His insightful discussion offered a wealth of knowledge to the audience and was received with great enthusiasm.