Volume 36 • Number 1 • 2013   • Submersion of Semi-Invariant Submanifolds of Trans-Sasakian Manifold Mohammad Hasan Shahid, Falleh R. Al-Solamy, Jae-Bok Jun and Mobin Ahmad Abstract. In this paper, we discuss submersion of semi-invariant submanifolds of trans-Sasakian manifold and derive some results on their differential geometry. We also discuss cohomology of semi-invariant submanifold of trans-Sasakian manifold under the submersion. 2010 Mathematics Subject Classification: 53C40 Full text: PDF