Abstract
We study a uniqueness question of entire functions sharing an entire function of smaller order with their difference operators, and deal with a question posed by Liu and Yang. The results in this paper extend the corresponding results obtained by Liu-Yang and by Liu-Laine respectively. Examples are provided to show that the results in this paper, in a sense, are the best possible.
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References
Al-Khaladi, A.: On meromorphic functions that share one value with their derivative. Analysis, 25, 131–140 (2005)
Anderson, J. M., Clunie, J.: Slowly growing meromorphic functions. Comment. Math. Helv., 40, 267–280 (1966)
Ash, R.: Complex Variables, Academic Press, New York and London, 1971
Bergweiler, W., Langley, J. K.: Zeros of differences of meromorphic functions. Math. Proc. Cambridge Philos. Soc., 142, 133–147 (2007)
Brück, R.: On entire functions which share one value CM with their first derivative. Results in Math., 30, 21–24 (1996)
Chiang, Y. M., Feng, S. J.: On the Nevanlinna characteristic of f(z + ν) and difference equations in the complex plane. Ramanujan J., 16, 105–129 (2008)
Chiang, Y. M., Feng, S. J.: On the growth of logarithmic differences, difference quotients and logarithmic derivatives of meromorphic functions. Trans. Amer. Math. Soc., 361, 3767–3791 (2009)
Gundersen, G. G.: Finite order solutions of second order linear differential equations. Trans. Amer. Math. Soc., 305, 415–429 (1988)
Halburd, R. G., Korhonen, R. J.: Nevanlinna theory for the difference operator. Ann. Acad. Sci. Fenn. Math., 31, 463–478 (2006)
Halburd, R. G., Korhonen, R. J.: Difference analogue of the lemma on the logarithmic derivative with applications to difference equations. J. Math. Anal. Appl., 314, 477–487 (2006)
Hayman, W. K.: Meromorphic Functions, Clarendon Press, Oxford, 1964
Hayman, W. K.: Slowly growing integral and subharmonic functions. Comment. Math. Helv., 34, 75–84 (1960)
Heittokangas, J., Korhonen, R., Laine, I., et al.: Uniqueness of meromorphic functions sharing values with their shifts. Complex Var. Elliptic Equ., 56, 81–92 (2011)
Heittokangas, J., Korhonen, R., Laine, I., et al.: Value sharing results for shifts of meromorphic function and sufficient conditions for periodicity. J. Math. Anal. Appl., 355, 352–363 (2009)
Ishizaki, K., Tohge, K.: On the complex oscillation of some linear differential equations. J. Math. Anal. Appl., 206, 503–517 (1997)
Jank, G., Volkmann, L.: Einführung in die Theorie der Ganzen und Meromorphen Funktionen mit Anwendungen auf Differentialgleichungen, Birkhäuser, Basel, Boston, 1985
Laine, I.: Nevanlinna Theory and Complex Differential Equations, Walter de Gruyter, Berlin/New York, 1993
Laine, I., Yang, C. C.: Clunie theorems for difference and q-difference polynomials. J. London Math. Soc., 76, 556–566 (2007)
Laine, I., Yang, C. C.: Value distribution of difference polynomials. Proc. Japan Acad. Ser. A, 83, 148–151 (2007)
Li, X. M., Yi, H. X.: On the uniqueness of an entire function sharing a small entire function with some linear differential polynomial. Czech. Math. J., 59, 1039–1058 (2009)
Liu, K.: Meromorphic functions sharing a set with applications to difference equation. J. Math. Anal. Appl., 359, 384–393 (2009)
Liu, K., Yang, L. Z.: Value distribution of the difference operator. Arch. Math., 92, 270–278 (2009)
Liu, K., Laine, I.: A note on value distribution of difference polynomials. Bull. Aust. Math. Soc., 81, 353–360 (2010)
Markushevich, A. I.: Theory of Functions of a Complex Variable, Vol. II, Prentice-Hall, Englewood Cliffs, New Jersey, 1965
Rubel, L., Yang, C. C.: Values shared by an entire function and its derivative. In: Complex Analysis, Kentucky 1976 (Proc. Conf.), Lecture Notes in Mathematics, Vol. 599, pp. 101–103, Springer-Verlag, Berlin, 1977
Whittaker, J. M.: Interpolatory Function Theory, Cambridge Tract No. 33, Cambridge University Press, Cambridge, 1935
Yang, C. C., Yi, H. X.: Uniqueness Theory of Meromorphic Functions, Kluwer Academic Publishers, Dordrecht/Boston/London, 2003
Zhang, J. L.: Value distribution and shared sets of differences of meromorphic functions. J. Math. Anal. Appl., 367, 401–408 (2010)
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Supported by National Natural Science Foundation of China (Grant No. 11171184) and the Natural Science Foundation of Shandong Province, China (Grant No. Z2008A01)
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Li, X.M., Yi, H.X. Entire functions sharing an entire function of smaller order with their difference operators. Acta. Math. Sin.-English Ser. 30, 481–498 (2014). https://doi.org/10.1007/s10114-014-2042-x
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DOI: https://doi.org/10.1007/s10114-014-2042-x