Omnipresent holomorphic operators and maximal cluster sets
On a certain functional equation in the algebra of polynomials with complex coefficients.
On a class of complex functional equations.
On a conformal-mapping property
On a converse of Laguerre's theorem.
On a functional equation occurring in astrophysics.
On a functional equation of Pexider type.
On a functional equation. (Short Communication).
On a functional inequality.
On a generalization of Hille's functional equation
On a kth-order differential equation
We prove a theorem on the growth of a solution of a kth-order linear differential equation. From this we obtain some uniqueness theorems. Our results improve several known results. Some examples show that the results are best possible.
On a meromorphic function having few poles but not tending to infinity along a path
On a metrical theorem in geometry of circles
On a noncommutative algebraic geometry
Several sets of quaternionic functions are described and studied with respect to hyperholomorphy, addition and (non-commutative) multiplication, on open sets of ℍ, then Hamilton 4-manifolds analogous to Riemann surfaces, for ℍ instead of ℂ, are defined, and so begin to describe a class of four-dimensional manifolds.
On a problem in complex oscillation theory of periodic second order linear differential equations and some related perturbation results.
On a Problem of Best Uniform Approximation and a Polynomial Inequality of Visser
In this paper, a generalization of a result on the uniform best approximation of α cos nx + β sin nx by trigonometric polynomials of degree less than n is considered and its relationship with a well-known polynomial inequality of C. Visser is indicated.
On a question of Hong Xun Yi
In the paper we prove a uniqueness theorem for meromorphic functions which provides an answer to a question of H. X. Yi.
On a result of Ozawa and uniqueness of meromorphic function.
On a result of Tohge concerning the unicity of meromorphic functions.
On a result of Zhang and Xu concerning their open problem
The motivation of this paper is to study the uniqueness of meromorphic functions sharing a nonzero polynomial with the help of the idea of normal family. The result of the paper improves and generalizes the recent result due to Zhang and Xu [24]. Our another remarkable aim is to solve an open problem as posed in the last section of [24].