On harmonic maps

This study which is prepared as a master thesis consists of five chapters. The first chapter, of this thesis is devoted to the introduction part which states the aim and usage areas of the thesis. The second chapter contains fundamental definitions which are concerned with Riemann manifolds that will be used in other chapters. In the third chapter, harmonic maps in the Euclidean space, their reltions with minimal surfacesand the properties of harmonic maps between the Riemannian manifolds are given. In the fourth chapter, properties of Kenmotsu manifolds and cosymplectic manifoldsare presented by giving fundamental definitionswhich are concerned with almost contact metric manifolds. In the last part,the properties of harmonic maps on Kenmotsu manifolds and cosymlectic manifolds are compiled, respectively as considering the concepts which are mentioned in previous chapters.