Abathun, Addisalem (PhD)Feyisa, Gezahegn2019-09-192023-11-092019-09-192023-11-092018-09-01http://etd.aau.edu.et/handle/123456789/19136The main consideration of this thesisis Hardy Space over upper half-Plane. Normed linear space, harmonic functions, sub-harmonic functions, Hardy space on the unit disc, Blaschke product and composition operators on Hardy space of a half-plane are also introduced in different perspectives.enHardy SpaceHalf PlaneNormed Linear SpaceThesis