Let {fn} be a sequence of functions meromorphic in a domain D, let {hn} be a sequence of holomorphic functions in D, such that hn（z） x h（z）, where h（z） 0 is holomorphic in D, and let k be a positive integ...Let {fn} be a sequence of functions meromorphic in a domain D, let {hn} be a sequence of holomorphic functions in D, such that hn（z） x h（z）, where h（z） 0 is holomorphic in D, and let k be a positive integer. If for each n ∈ N＋, fn（z） ≠ 0 and fn（k）（z） - hn（z） has at most k distinct zeros （ignoring multiplicity） in D, then {fn} is normal in D.展开更多
The topological pressure for subadditive sequence of discontinuous functions is defined on any invariant subset having a nested family of subsets in the compact metric space. Two subadditive variational principles ass...The topological pressure for subadditive sequence of discontinuous functions is defined on any invariant subset having a nested family of subsets in the compact metric space. Two subadditive variational principles associated with two different relatively weak conditions are developed for the defined topological pressure. As an application, we give an example on systems with nonzero Lyapunov exponents.展开更多
基金Supported by the NNSF of China(Grant.No.11:371149)
文摘Let {fn} be a sequence of functions meromorphic in a domain D, let {hn} be a sequence of holomorphic functions in D, such that hn（z） x h（z）, where h（z） 0 is holomorphic in D, and let k be a positive integer. If for each n ∈ N＋, fn（z） ≠ 0 and fn（k）（z） - hn（z） has at most k distinct zeros （ignoring multiplicity） in D, then {fn} is normal in D.
基金Supported by the National Natural Science Foundation of China (10971100)supported by a grant from Postdoctoral Science Research Program of Jiangsu Province (0701049C)+1 种基金the Fundamental Research Funds for the Central Universitiessupported by National Basic Research Program of China (973 Program)(2007CB814800)
文摘The topological pressure for subadditive sequence of discontinuous functions is defined on any invariant subset having a nested family of subsets in the compact metric space. Two subadditive variational principles associated with two different relatively weak conditions are developed for the defined topological pressure. As an application, we give an example on systems with nonzero Lyapunov exponents.
