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On the value distribution of differential polynomials

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In this paper we consider the problem of whether certain homogeneous or non-homogeneous differential polynomials in f(z) necessarily have infinitely many zeros. Particularly, this extends a result of Gopalakrishna and Bhoosnurmath [3, Theorem 2] for a general differential polynomial of degree d (P) and lower degree d (P).

Abstract

In this paper we consider the problem of whether certain homogeneous or non-homogeneous differential polynomials in f(z) necessarily have infinitely many zeros. Particularly, this extends a result of Gopalakrishna and Bhoosnurmath [3, Theorem 2] for a general differential polynomial of degree d (P) and lower degree d (P).

참고문헌 (9)

  1. C. T. Chuang, "On differential polynomials, Analysis of one complex variable (Laramie, Wyo., 1985)", pp.12~32 (1987), World Sci. Publishing
  2. J. Clunie, "On a result of Hayman", Journal of the London Mathematical Society, 42, pp.389~392 (1967)
  3. H. S. Gopalakrishna, "On the deficiencies of differential polynomials", Karnatak University Journal Science, 18, pp.329~335 (1973)
  4. W. K. Hayman, "Meromorphic Functions" (1964), Oxford Mathematical Monographs Clarendon Press
  5. W. K. Hayman, "Picard values of meromorphic functions and their derivatives", Annals of Mathematics, 70, pp.9~42 (1959)
  6. L. R. Son, "Deficiencies of monomials", Mathematische Zeitschrift, 111, pp.53~68 (1969)
  7. C. C. Yang, "On deficiencies of differential polynomials", Mathematische Zeitschrift, 116, pp.197~204 (1970)
  8. C. C. Yang, "On deficiencies of differential polynomials II", Mathematische Zeitschrift, 125, pp.107~112 (1972)
  9. L. Yang, "Value Distribution Theory" (1993), Springer-Verlag, Berlin; Science Press

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