Supported by NNSFC(10171071) China MOE research and the Doctor Funds of Zhanjiang Normal University Grants
A functional equation of nonlinear iterates is discussed on the circle S^1 for its continuous solutions and differentiable solutions. By lifting to R, the existence, uniqueness and stability of those solutions are obt...
This paper studies the smoothness of solutions of the higher dimensional polynomial-like iterative equation. The methods given by Zhang Weinian([7]) and by Kulczvcki M, Tabor j.([3]) are improved by constructing a new...
This work was supported by the National Natural Science Foundation of China(Grant No.10171071);China MOE Research Grants TRAPOYT.
It is known that small perturbations of a Fredholm operatorL have nulls of dimension not larger than dimN(L). In this paper for any given positive integer κ ? dimN(L) we prove that there is a perturbation ofL which h...