On the invariants of base changes of pencils of curves, II.
Heigth inequality of algebraic points on curves over functional fields.
On the Invariants of Base Changes of Pencils of Curves, I.
Surfaces whose canonical maps are of odd degrees.
The application of nonlinear spectral subtraction method on millimeter wave conducted speech enhancement.
Oscillation of a logistic equation with delay and diffusion
This paper establishes oscillation theorems for a class of functional parabolic equations which arises from logistic population models with delays and diffusion.
An upper bound on the Laplacian spectral radius of the signed graphs
In this paper, we established a connection between the Laplacian eigenvalues of a signed graph and those of a mixed graph, gave a new upper bound for the largest Laplacian eigenvalue of a signed graph and characterized the extremal graph whose largest Laplacian eigenvalue achieved the upper bound. In addition, an example showed that the upper bound is the best in known upper bounds for some cases.
Entire functions that share values or small functions with their derivatives
We investigate the uniqueness of entire functions sharing values or small functions with their derivatives. One of our results gives a necessary condition on the Nevanlinna deficiency of the entire function f sharing one nonzero finite value CM with its derivative f'. Some applications of this result are provided. Finally, we prove some further results on small function sharing.
Distribution of zeros and shared values of difference operators
We investigate the distribution of zeros and shared values of the difference operator on meromorphic functions. In particular, we show that if f is a transcendental meromorphic function of finite order with a small number of poles, c is a non-zero complex constant such that for n ≥ 2, and a is a small function with respect to f, then equals a (≠ 0,∞) at infinitely many points. Uniqueness of difference polynomials with the same 1-points or fixed points is also proved.
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