数学、物理学、化学、生态学及经济学等学科产生的非线性微分差分问题，正日益引起人们的重视。
Many nonlinear differential and difference problems resulting from mathematics, physics, chemistry, biology and economics and so on have increasingly brought people 's attention.
几十年来，非线性差分方程理论已广泛应用于计算机科学、经济学、神经网络、生态学及控制论等学科中出现的离散模型。
In the last decade, nonlinear difference equation theory has been widely applied in the discrete models of computer science, economy, neutral net, ecology and control theory.
产出和生产率，究竟是趋势平稳，亦或差分平稳，是现代宏观经济学争论的重要议题。
It is a controversial issue whether the output and productivity follow a trend-stationary or difference-stationary process in modern macroeconomic theory.
产出和生产率，究竟是趋势平稳，亦或差分平稳，是现代宏观经济学争论的重要议题。
It is a controversial issue whether the output and productivity follow a trend-stationary or difference-stationary process in modern macroeconomic theory.
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