Question: IBS incorrect. How to write?

There is a desire to explore the process of filtration combustion. To do this, you must solve a system of differential equations in partial derivatives.
I write down all the equations.
Boundary conditions in Maple 2015.0 interpreted incorrectly.
I need to write like that:

 

 

given that:


It turns out so:

 

 

ie somewhere lost derivatives

,....

 

 

As in Maple record boundary conditions correct?

Thanking you in advance.

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