... ConditionsAkbar B. Aliev1and Ulviya M . Mamedova21Azerbaijan Technical University, AZ 1073, Baki, Azerbaijan2Institute of Mathematics and Mechanics of NAS of Azerbaijan, AZ 1141, Baku, AzerbaijanCorrespondence ... Equations. Ordinary and Partial Differential Equations,vol. 103 of Chapman & Hall/CRC Monographs and Surveys in Pure and Applied Mathematics,Chapman&Hall/CRC, Boca Raton, Fla, USA, 2000.8 ... 2000.8 S. Q. Krein, Linear Differential Equation in Banach Spaces, Nauka, Moscow, Russia, 1967.9 A. B. Aliev, “Solvability in the large” of the Cauchy problem for quasilinear equations of hyperbolictype,”...