Department;
of;
Mathematics;
and;
Computer;
Sciences,;
ankaya;
University,06530,;
Ankara,;
Turkey;
Department;
of;
Mathematics;
and;
Computer;
Sciences,;
ankaya;
University,06530,;
Ankara,;
Turkey;
On;
leave;
of;
absence;
from;
Institute;
of;
Space;
Sciences,;
P.O.BOX,;
MG-23,;
R;
76900;
Magurele,;
Romania;
fractional; Caputo; derivative; C_r-condition; delay; Lipschitz;