Differential Equations & Applications · Volume 1, Issue 2 Classical solutions of quasilinear functional differential systems on the Haar pyramid 01-09 Pages 179-197 DOI 10.7153/dea-01-09 Downloads Short PDF Full PDF PNG Authors Elżbieta Puźniakowska Keywords partial differential equations Haar pyramid classical solutions bicharacteristics Subject classes 35R10 35L60