Contact Riemanian submersions

This thesis consist of five chapters. The first chapter deals with the introduction and the literature review. The second chapter gives the definitions of the terms and the concepts used in the following chapters. In the third chapter, definitions and characteristice related to Riemannian submersions are given. Besides, contact manifolds have been identified. In the fourth chapter, almost contact Riemannian submersions and their attributes have been studied. In addition, curvature relationships are studied for contact Riemannian submersions. In the fifth chapter, discussions and conclusions are given. Keywords: Riemannian submersion, almost the contact metric manifolds,cosymplectic manifolds, contact Riemannian submersiyon.