Meromorphic functions whose certain differential polynomial share a polynomial

Uniqueness and Differential Polynomials of Meromorphic Functions Sharing a Polynomial

In this paper, we deal with the uniqueness problems of meromorphic functions when certain nonlinear differential polynomials generated by them share a nonconstant polynomial counting multiplicities by considering that the functions share in nity, ignoring multiplicities. The research ndings also include IM-analogues of the theorem in which the nonconstant polynomial is allowed to be shared igno...

Uniqueness of meromorphic functions concerning differential polynomials share one value

* Correspondence: xcw919@gmail. com College of Mathematics and Statistics, Chongqing University, Chongqing, 401331, People’s Republic of China Full list of author information is available at the end of the article Abstract In this paper, we study the uniqueness of meromorphic functions whose differential polynomial share a non-zero finite value. The results in this paper improve some results gi...

Faber Polynomial Coefficient Estimates for Meromorphic Bi-Starlike Functions

License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We consider meromorphic starlike univalent functions that are also bi-starlike and find Faber polynomial coefficient estimates for these types of functions. A function is said to be bi-starlike if both the function and its inverse are starlike univalent. Consider ...

ON THE EDGE COVER POLYNOMIAL OF CERTAIN GRAPHS

Let $G$ be a simple graph of order $n$ and size $m$.The edge covering of $G$ is a set of edges such that every vertex of $G$ is incident to at least one edge of the set. The edge cover polynomial of $G$ is the polynomial$E(G,x)=sum_{i=rho(G)}^{m} e(G,i) x^{i}$,where $e(G,i)$ is the number of edge coverings of $G$ of size $i$, and$rho(G)$ is the edge covering number of $G$. In this paper we stud...

Differential Polynomial Rings of Triangular Matrix Rings