TY - JOUR
T1 - On the Second-order Equations of Mixed Type of First Kind
AU - Sun Hesheng
JO - Journal of Partial Differential Equations
VL - 3
SP - 273
EP - 283
PY - 1993
DA - 1993/06
SN - 6
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jpde/5714.html
KW - Equation or mixed type
KW -  generalized Tricomi problem
KW -  strong solution
AB -  In this paper the generalized Tricomi problem for the second-order equation of mixed type of first kind is considered. The uniqueness or solutions is proved under very weak conditions oil the coefficients or equation and the boundary curve of domain. The existence of H&sup1 strong solutions is proved for the Tricomi problem.