Construction
of
fixed
points
of
nonexpansive
mappings
and
asymptotically
nonexpansive
mappings
is
an
important
subject
in
the
theory
of
nonexpansive
mappings
and
finds
its
applications
in
a
number
of
applied
areas,
in
particular
in image
recovery
and
signal
processing
(see, for example, Byrne, 2004; Podilchuk and Mammone, 1990; Sezan and Stark, 1987; Youla, 1987, 1990).
However,
the
sequence {Tnx}1= 0 of
iterates
of
the
mapping
T at
a point x 2
C
may
not
converge
even
in
the
weak
topology
and
since
averaged
iterations
prevail.
Mann
(1953)
introduced
the following
iterative
procedure
for
approximating
a fixed
point
of
a nonexpansive
mapping
T in a
Hilbert
space H: