TY - JOUR T1 - On Modified Tricomi Problem of Semi-linear Equation of Mixed Type of Second Kind AU - Xiao Zhuang JO - Journal of Partial Differential Equations VL - 4 SP - 1 EP - 16 PY - 1990 DA - 1990/03 SN - 3 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jpde/5810.html KW - equation of mixed type KW - modified Tricomi problem KW - strong solution AB - In this paper we considered the semi-linear equation of mixed type of second kind, k(x, y)u_{tt} + u_{xx} + a(x, y)u_t + P(x, y)u_t + y(x, y)u - |u|^pu = f(z,y) For the above equation, we solved the modified Tricomi problem and have proved the existence and uniqueness of strong solution in H_1.