Published online by Cambridge University Press: 20 November 2018
In this paper, we first discuss the relation between $\text{VB}$-Courant algebroids and
$\text{E}$-Courant algebroids, and we construct some examples of
$\text{E}$-Courant algebroids. Then we introduce the notion of a generalized complex structure on an
$\text{E}$-Courant algebroid, unifying the usual generalized complex structures on even-dimensional manifolds and generalized contact structures on odd-dimensional manifolds. Moreover, we study generalized complex structures on an omni-Lie algebroid in detail. In particular, we show that generalized complex structures on an omni-Lie algebra
$\text{gl}\left( V \right)\oplus V$ correspond to complex Lie algebra structures on
$V$.