| Abstract: |
| In this talk, we shall provide a comprehensive variational
principle that
allows one to apply critical point theory on closed proper subsets of a
given Banach
space and yet, to obtain critical points with respect to the whole space.
This variational principle has many applications in partial differential
equations
while unifies and generalizes several results in nonlinear Analysis such
as the
fixed point theory, critical point theory on convex sets and the principle of
symmetric criticality. |
|