In this paper, we research the existence or non-existence of warped product semi-slant submanifolds in Kenmotsu manifolds. Consequently, we see that there are no proper warped product semi-slant submanifolds in Kenmotsu manifolds such that totally geodesic and totally umbilical submanifolds of warped product are proper semi-slant and invariant (or anti-invariant), respectively.
"Warped product semi-slant submanifolds in Kenmotsu manifolds,"
Turkish Journal of Mathematics: Vol. 34:
3, Article 12.
Available at: https://journals.tubitak.gov.tr/math/vol34/iss3/12