## 偏微分方程式セミナー(2017/11/10): Some study on the blowup problem of scale-invariant damping wave equation with Strauss type exponent, Tu Ziheng 氏 (北海道大学)

2017年 　 11月 10日 16時 30分 ～ 2017年 　 11月 10日 17時 30分

Tu Ziheng 氏 (北海道大学)

In this talk, I would like to share some of my recent study on this problem. By introducing the modified Bessel function of second kind $K_\nu$, the blowup range is extended from $p_F(n)\leq p < p_s(n+2\mu)$ to $p_F(n)\leq p < p_s(n+\mu)$ for the sub-Strauss exponent. For the critical Strauss exponent, applying the plane wave fourmula and utilizing the limiting behavior of $K_\nu$, the desired lifespan estimate is obtained.