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UNIQUENESS OF MEROMORPHIC SOLUTIONS OF A CERTAIN TYPE OF DIFFERENCE EQUATIONS

  • Chen, Jun-Fan (School of Mathematics and Statistics Fujian Normal University) ;
  • Lin, Shu-Qing (School of Mathematics and Statistics Fujian Normal University)
  • Received : 2021.07.03
  • Accepted : 2021.11.04
  • Published : 2022.07.31

Abstract

In this paper, we study the uniqueness of two finite order transcendental meromorphic solutions f(z) and g(z) of the following complex difference equation A1(z)f(z + 1) + A0(z)f(z) = F(z)e𝛼(z) when they share 0, ∞ CM, where A1(z), A0(z), F(z) are non-zero polynomials, 𝛼(z) is a polynomial. Our result generalizes and complements some known results given recently by Cui and Chen, Li and Chen. Examples for the precision of our result are also supplied.

Keywords

Acknowledgement

The authors would like to thank the referees for their thorough comments and helpful suggestions.

References

  1. S. B. Bank and R. P. Kaufman, An extension of Holder's theorem concerning the gamma function, Funkcial. Ekvac. 19 (1976), no. 1, 53-63.
  2. Z. X. Chen, Complex Differences and Difference Equations, Science Press, Beijing, 2014.
  3. Z.-X. Chen and K. H. Shon, On growth of meromorphic solutions for linear difference equations, Abstr. Appl. Anal. 2013 (2013), Art. ID 619296, 6 pp. https://doi.org/10.1155/2013/619296
  4. Z.-X. Chen and H.-X. Yi, On sharing values of meromorphic functions and their differences, Results Math. 63 (2013), no. 1-2, 557-565. https://doi.org/10.1007/s00025-011-0217-7
  5. Y.-M. Chiang and S.-J. Feng, On the Nevanlinna characteristic of f(z+η) and difference equations in the complex plane, Ramanujan J. 16 (2008), no. 1, 105-129. https://doi.org/10.1007/s11139-007-9101-1
  6. N. Cui and Z. X. Chen, Unicity for meromorphic solutions of some difference equations sharing three values of any meromorphic function, J. South China Normal Univ. Natur. Sci. Ed. 48 (2016), no. 4, 83-87.
  7. N. Cui and Z. X. Chen, Uniqueness for meromorphic solutions sharing three values with a meromorphic function to some linear difference equations, Chinese J. Contemp. Math. 38 (2017), no. 1, 13-22; translated from Chinese Ann. Math. Ser. A 38 (2017), no. 1, 13-22.
  8. R. G. Halburd and R. J. Korhonen, Difference analogue of the lemma on the logarithmic derivative with applications to difference equations, J. Math. Anal. Appl. 314 (2006), no. 2, 477-487. https://doi.org/10.1016/j.jmaa.2005.04.010
  9. W. K. Hayman, Meromorphic Functions, Oxford Mathematical Monographs, Clarendon Press, Oxford, 1964.
  10. J. Heittokangas, R. Korhonen, I. Laine, and J. Rieppo, Uniqueness of meromorphic functions sharing values with their shifts, Complex Var. Elliptic Equ. 56 (2011), no. 1-4, 81-92. https://doi.org/10.1080/17476930903394770
  11. I. Laine, Nevanlinna Theory and Complex Differential Equations, De Gruyter Studies in Mathematics, 15, Walter de Gruyter & Co., Berlin, 1993. https://doi.org/10.1515/9783110863147
  12. S. Li and B. Chen, Uniqueness of meromorphic solutions of the difference equation R1(z)f(z + 1) + R2(z)f(z) = R3(z), Adv. Difference Equ. 2019 (2019), Paper No. 250, 11 pp. https://doi.org/10.1186/s13662-019-2194-1
  13. X.-M. Li and H.-X. Yi, Meromorphic functions sharing four values with their difference operators or shifts, Bull. Korean Math. Soc. 53 (2016), no. 4, 1213-1235. https://doi.org/10.4134/BKMS.b150609
  14. F. Lu, Q. Han, and W. Lu, On unicity of meromorphic solutions to difference equations of Malmquist type, Bull. Aust. Math. Soc. 93 (2016), no. 1, 92-98. https://doi.org/10.1017/S0004972715000787
  15. R. Nevanlinna, Le th'eor'eme de Picard-Borel et la th'eorie des fonctions meromorphes, Chelsea Publishing Co., New York, 1974.
  16. X. Qi, N. Li, and L. Yang, Uniqueness of meromorphic functions concerning their differences and solutions of difference Painleve equations, Comput. Methods Funct. Theory 18 (2018), no. 4, 567-582. https://doi.org/10.1007/s40315-018-0241-7
  17. S. Shimomura, Entire solutions of a polynomial difference equation, J. Fac. Sci. Univ. Tokyo Sect. IA Math. 28 (1981), no. 2, 253-266.
  18. N. Yanagihara, Meromorphic solutions of some difference equations, Funkcial. Ekvac. 23 (1980), no. 3, 309-326.
  19. C.-C. Yang and H.-X. Yi, Uniqueness Theory of Meromorphic Functions, Mathematics and its Applications, 557, Kluwer Academic Publishers Group, Dordrecht, 2003.