This paper proves the existence, uniqueness and periodicproblem of the solution about second order singular perturbation system by using the differential inequality.
本文用微分不等式证明了二阶奇摄动系统解的存在性、唯一性和周期性。
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The periodic long connect time was eliminated by fixing a temporary DNS problem (in this case the fix was as simple as re-connecting the laptop computer to the LAN so it could access the DNS server).