BPS invariants and wallcrossing
Dr. Wu-yen ChuangRutgers University, USA 下午 3:00–4:00 Tòa nhà Hồng Kinh 107 室In this talk we discuss the BPS invariants in physics/string theory and their wallcrossing under the variations of the stability conditions. We will also mention the connection with the generalized Donaldson-Thomas invariants. Some concrete examples like the resolved conifold will be discussed. New results of higher rank DT invariants will be presented if time permits.