@Article{JPDE-12-106, author = {Hesheng Sun }, title = {Modified Tricomi Problem for a Nonlinear System of Second Order Equations of Mixed Type}, journal = {Journal of Partial Differential Equations}, year = {1999}, volume = {12}, number = {2}, pages = {106--110}, abstract = { In this paper a nonliuear system of second order equations of mixed type is considered. The existence of H¹ strong solution for the modified Tricomi problem is proved by the energy integral method and the Leray-Schauder's fixed point principle.}, issn = {2079-732X}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/jpde/5529.html} }