@Article{JPDE-10-347, author = {Tai-Ping Liu }, title = {Regularization of Solution Operators for Quasilinear Hyperbolic-parabolic Partial Differential Equations}, journal = {Journal of Partial Differential Equations}, year = {1997}, volume = {10}, number = {4}, pages = {347--354}, abstract = { We list a hierarchy of hyperbolic-parabolic partial differential equations in terms of the regularization properties of their solution operators. This ranges from the most regularizing of the heat operator to the least, that of the hyperbolic conservation laws. We illustrate this with physical examples in gas dynamics and mechanics.}, issn = {2079-732X}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/jpde/5604.html} }