Published online by Cambridge University Press: 05 January 2017
We prove a DDVV inequality for submanifolds of warped products of the form
$I\times _{a}\mathbb{M}^{n}(c)$
, where
$I$
is an interval and
$\mathbb{M}^{n}(c)$
is a real space form of curvature
$c$
. As an application, we give a rigidity result for submanifolds of
$\mathbb{R}\times _{e^{\unicode[STIX]{x1D706}t}}\mathbb{H}^{n}(c)$
.