Little attention is on questions of existence of positive solutions for BVP of singular differential equation on measure chains and the relevant papers are few.
测度链上奇异微分方程边值问题正解的存在性,研究的人较少,相应的文献也要少的多。
Suppose an advertiser has a RMB30 million budget. If he cannot measure and plan a singular advertising campaign, then he is playing a guessing game.
假设广告主有三千万的预算,如无法衡量与规划单一的广告战役,那广告商就瞎打,瞎猜。
Suppose an advertiser has a RMB30 million budget. If he cannot measure and plan a singular advertising campaign, then he is playing a guessing game.
假设广告主有三千万的预算,如无法衡量与规划单一的广告战役,那广告商就瞎打,瞎猜。
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