Dear all, I have BVP (like laplace eq. with some b.c's) applied in \omega=[-1,1]x[-1,1], where the internal source ( f ) is applied on a subset in \omega, say \omega_1 \subset \omega (\omega_1=[-0.25,0.25]x[-1,1]), where f =g in \omega_1 and zero otherwise.
So, can one use boundary_indicator techniqe in order to specify the points, where we want to apply ( f ) on them, or there is another technique ? best regards, Ahmad
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