A. N. Kusyumov
Department of Aerohydrodynamics
Kazan State Technical University
Karl Marks Str. 10
420111 Kazan, Russia
V. G. Pavlov
Department of Aerohydrodynamics
Kazan State Technical University
Karl Marks Str. 10
420111 Kazan, Russia
The set of exterior differential equations appropriate to an arbitrary quasilinear partial differential equations set (with parameter) of the first order is considered. The concept of partial group transformation of exterior equations system is entered. The partial symmetries for construction of the exact solutions of the initial equations set are used.