🚀 go-pugleaf

From my initial view of your equations and boundary conditions, it looks like that
the equations can be solved by some simple manipulation. I may get back to you
later with more details.

	Here goes the initial suggestions;
If a = A, then you can have a new dependent variable by adding equations 1 and 2.  Similarly,
if  a = B, the same thing can be said of equations 2 and 3.  I supect that this may be the
case, since your boundary conditions are additive.  Once you have the simplified equations,
you can solve them using separation of variables.  I have to look into your problem
in more detail before I can say more.  Hope that this helps.

S.Shankar
Tech CAD
INTEL