I have the following problem in Finite Element Method
$ -(\alpha u')' + \beta u' + \gamma u$
with $ \Omega = (0, 1)$, $ u(0) = 0 $ and $ u'(1) = 3 $
to be able to write the weak formulation of the problem do I need a lifting function?
i.e., do I need to define something like
$ \tilde u = u - R$
P.S. Sorry for the tags there is nothing like "finite-element", "neumann-boundary-condition", "dirichlet-boundary-condition", "mixed-boundary-condition"