Smoothing property of gain term of Boltzmann collision operator.
江金城 博士中研院 下午 4:30–5:20 鴻經館 107 室In this talk, I will present new estimates about the smoothing property of gain term of Boltzmann collision operator for the hard sphere model. These estimates are useful in studying propagation of singularity of solution, we will also discuss this issue if time is allowed.