Linear delay-differential operator of a meromorphic function sharing two sets or small function together with values with its c-shift or q-shift
Abstract
The paper is devoted to study the uniqueness problem of linear delay-differential operator of a meromorphic function sharing two sets or small function together with values with its \(c\)-shift and \(q\)-shift operator. Results of this paper drastically improve two recent results of Meng-Liu [J. Appl. Math. Inform. 37(1-2)(2019), 133-148] and Qi-Li-Yang [Comput. Methods Funct. Theo., 18(2018), 567-582]. In addition to this, one of our result improve and extend that of Qi-Yang [Comput. Methods Funct. Theo., 20(2020), 159-178].
Keywords
Full Text:
PDFReferences
Banerjee, A.: Meromorphic functions sharing two sets, Czech. Math. J., 57(132)(2007), 1199-1214.
Barnett, D. C. Halburd, R. G. Korhonen, R. J. and Morgan, W.: Nevanlinna theory for the q-difference operator and meromorphic solutions of q-difference equations, Proc. Roy. Soc. Edinburgh Sect. A, 137(2007), 457–474.
Chiang, Y. M. and Feng, S. J.: On the Nevanlinna Characteristic f(z+η)) and difference equations in complex plane, Ramanujan J., 16(2008), 105-129.
F.Gross, Factorization of meromorphic functions and some open problems, Proc. Conf. Univ. Kentucky, Leixngton, Kentucky(1976); Lecture Notes in Math., 599(1977), 51-69, Springer(Berlin).
Halburd, R. G. and Korhonen, R. J.: Difference analogue of the lemma on the logarithmic derivative with applications to difference equations, J. Math. Anal. Appl., 314(2006), 477-487.
Halburd, R., Korhonen, R. and Tohge, K.: Holomorphic curves with shift-invariant hyperplane preimages, Trans. Amer. Math. Soc., 366(2014), 4267-4298.
Hayman, W. K.: Meromorphic Functions, The Clarendon Press, Oxford (1964).
Lahiri, I.: Weighted sharing and uniqueness of meromorphic functions, Nagoya Math. J., 161(2001), 193-206.
Lahiri, I.: Weighted value sharing and uniqueness of meromorphic functions, Complex Var. Theo. Appl., 46(2001), 241-253.
Lahiri, I. and Dewan, S.: Value distribution of the product of a meromorphic function and its derivative, Kodai Math. J., 26(2003), 95-100.
Li, P. and Wang, W. J.: Entire functions that share a small function with its derivative, J. Math. Anal. Appl., 328(2007), 743–751.
Meng, C. and Liu, G.: Uniqueness of meromorphic functions concerning their shifts and derivatives, J. Appl. Math. Inform. 37(1-2)(2019), 133-148.
Qi, X., Li, N. and Yang, L.: Uniqueness of meromorphic functions concerning their differences and solutions of difference PainlevE equations, Comput. Methods Funct. Theo., 18(2018), 567-582.
Qi, X. and Yang, L.: Uniqueness of meromorphic functions concerning their shifts and derivatives, Comput. Methods Funct. Theo., 20(2020), 159-178.
Zhang, J. L. and Korhonen, R. J.: On the Nevanlinna characteristic of f(qz) and its application, J. Math. Anal. Appl., 369(2010), 537-544.
Yang, C. C. and Yi, H. X.: Uniqueness theory of meromorphic functions, Kluwer Academic, Dordrecht (2003).
DOI: http://dx.doi.org/10.24193/subbmath.2023.3.10
Refbacks
- There are currently no refbacks.