Gergün, Seçil2016-01-082016-01-081999http://hdl.handle.net/11693/18128Cataloged from PDF version of article.Includes bibliographical references leaves 55-56.We find conditions under which the factors of a function belonging to Hardy or Nevanlinna class also belong to the corresponding class. The basis of our method is the theorem on the representation of a function harmonic in the upper half-plane by Poisson integral under much less restrictive conditions than previously known.vii, 56 leavesEnglishinfo:eu-repo/semantics/openAccessPoisson integralBlaschke productHardy classNevanlinna classQA331 .G47 1999Functions.Analytic functions.Poisson integral formula.Thesis