Colloquium

Speaker: I-Kun Chen (National Taiwan University)
Title: A Revisit of the Velocity Averaging Lemma: On the Regularity of Stationary Boltzmann Equation in a Bounded Convex Domain
Time: 2020-08-06 (Thu.)  15:00 - 16:00
Place: Auditorium, 6 Floor, Institute of Mathematics (NTU Campus)
Abstract: We consider stationary linearized Boltzmann equations with hard sphere, cutoff hard, and cutoff Maxwellian potentials in a bounded convex domain of positive Gaussian curvature with incoming boundary data. We adopt velocity averaging lemma and establish regularity in fractional Sobolev space in space variable up to order 1-. In addition to the technique of velocity averaging lemma, our analysis depends heavily on the geometric properties. This is a joint work with Ping-Han Chuang, Chun-Hsiung Hsia, and Jhe-Kuan Su.
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