The Bitsadze--Samarskii problem for some characteristically loaded hyperbolic-parabolic equation
The paper considers a characteristically loaded equation Electronic Drum of a mixed hyperbolic-parabolic type with degeneration of order in the hyperbolicity part of the domain.In the hyperbolic part of the domain, we have a loaded one-velocity transport equation, known in mathematical biology as the Mac Kendrick Von Forester equation, in the parab