• Title of article

    CHARACTERISTIC FUNCTION OF A MEROMORPHIC FUNCTION an‎d ITS DERIVATIVES

  • Author/Authors

    WU, J Xianning Vocational and Technical College , WU, Z School of Mathematics and Statistics - Hubei University of Science and Technology

  • Pages
    7
  • From page
    1117
  • To page
    1123
  • Abstract
    ABSTRACT. In this paper, some results of Singh, Gopalakrishna and Kulkarni (1970s) have been extended to higher order derivatives. It has been shown that, if zo(a, f) = 2 holds for a meromorphic function f(z) of finite order, then for any positive integer k, T(r, f) ∼ T(r,f()),r ∼ ∞ if 6(∞, f) = 1 and T(r, fik)) ∼ (k + 1)T(r,f),r → ∞ if (∞, f) = 0.
  • Keywords
    maximum deficiency sum , Nevanlinna's deficiency , Characteristic function
  • Journal title
    Astroparticle Physics
  • Serial Year
    2013
  • Record number

    2423833

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=2423833