onvergence
properties of finite element method depend on existence of finite dimensional
spaces with the properties described in the conditions
(
Finite dimensional
approximation 1
), (
Finite
dimensional approximation 2
) and
(
Approximation in Nitsche norm
).
In this section we present techniques for construction of such finite
dimensional spaces.
The references are
[Brenner]
and
[OswaldOnline]
.
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