Über analytische Funktionen, die im Komplement kleiner Kreisscheiben groß sind.
Über die Inversion gewisser unendlicher Matrizen.
Über die Nullstellen meromorpher Funktionen und deren Ableitungen.
Über die Nullstellen von Differentialpolynomen.
Über die Werteverteilung von (f...+...)... .
Über eine Anwendung des Verzerrungssatzes auf meromorphe Funktionen.
Über eine Defekt- und Verzweigungsrelation für die Ableitung meromorpher Funktionen.
Über eine Vermutung von Hayman.
Über faktorisierbare Lösungen von Riccatischen Differentialgleichungen.
Uniform Approximation by Meromorphic Functions Having Prescribed Poles.
Uniqueness of entire or meromorphic functions sharing one value or a function with finite weight.
Uniqueness of meromorphic functions and differential polynomials sharing one value with finite weight
This paper deals with the uniqueness problem for meromorphic functions sharing one value with finite weight. Our results generalize those of Fang, Hong, Bhoosnurmath and Dyavanal.
Uniqueness of meromorphic functions concerning value sharing of nonlinear differential monomials
With the idea of normal family we study the uniqueness of meromorphic functions and when and share two values, where is any nonzero polynomial. The result of this paper significantly improves and generalizes the result due to A. Banerjee and S. Majumder (2018).
Uniqueness of meromorphic functions sharing a meromorphic function of a smaller order with their derivatives
We prove some uniqueness theorems for meromorphic functions and their derivatives that share a meromorphic function whose order is less than those of the above meromorphic functions. The results in this paper improve those given by G. G. Gundersen & L. Z. Yang, J. P. Wang, J. M. Chang & Y. Z. Zhu, and others. Some examples are provided to show that our results are the best possible.
Uniqueness of two analytic functions sharing four values in an angular domain
We deal with the uniqueness problem for analytic functions sharing four distinct values in an angular domain and obtain some theorems which improve the result given by Cao and Yi [J. Math. Anal. Appl. 358 (2009)].
Uniqueness theorems for entire functions whose difference polynomials share a meromorphic function of a smaller order
We deal with uniqueness of entire functions whose difference polynomials share a nonzero polynomial CM, which corresponds to Theorem 2 of I. Laine and C. C. Yang [Proc. Japan Acad. Ser. A 83 (2007), 148-151] and Theorem 1.2 of K. Liu and L. Z. Yang [Arch. Math. 92 (2009), 270-278]. We also deal with uniqueness of entire functions whose difference polynomials share a meromorphic function of a smaller order, improving Theorem 5 of J. L. Zhang [J. Math. Anal. Appl. 367 (2010), 401-408], where the entire...
Uniqueness theorems for meromorphic functions.
Uniqueness theorems for meromorphic functions concerning fixed points
This paper is devoted to the study of uniqueness of meromorphic functions sharing only one value or fixed points. We improve some related results due to J. L. Zhang [Comput. Math. Appl. 56 (2008), 3079-3087] and M. L. Fang [Comput. Math. Appl. 44 (2002), 823-831], and we supplement some results given by M. L. Fang and X. H. Hua [J. Nanjing Univ. Math. Biquart. 13 (1996), 44-48] and by C. C. Yang and X. H. Hua [Ann. Acad. Sci. Fenn. Math. 22 (1997), 395-406].
Uniqueness theorems for meromorphic functions that share three sets with weights.