Contact-Complex Riemannian submersions

This graduate thesis consist of five chapters. The first chapter is devoted to the introduction section and provide a general knowladge of literature. In the second chapter, the necessary basic definitions and theorems are introduced. In the third chapter, Riemannian submersions and basics tensors are considered. Moreover ,almost Hermitian manifolds and almost contact product manifolds were examined. In the fourth chapter, primarily, the definitions, examples and properties of contact-complex Riemannian submersions are mentioned. Then we studied O'neill tensors, transfer of structures and curvature properties for contact-complex Riemannian submersions. In the fifth chapter, discussions and conclusions were given.