e will use the proposition (
Toy
approximation in energy norm
) to approximate the difference
in
norm.
Let
be the solution of the
problem
Let
.
We
estimate
Thus
We assume that the following condition holds.
Under such assumption we
continue:
We recall
thus
We use the proposition (
Toy
approximation in energy
norm
):
and apply the condition (
Energy
approximation
):
