A kind of Nicholson-type delay system is considered. Several conditions on the ultimate boundedness, extinction, permanence, periodic solution, and global attractivity of the system are established by employing the inequality techniques and comparison method and constructing suitable Lyapunov functional.

中文翻译：

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非自治Nicholson型时滞系统的动力学

考虑一种Nicholson型时滞系统。通过使用不等式技术和比较方法并构造合适的Lyapunov函数，建立了系统的最终有界，灭绝，持久性，周期解和全局吸引性的几个条件。