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《Journal of Northern Jiaotong University》 2004-03
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Intersection Points of Density Curves

LIU Xiao-peng, LIU Kun-hui (School of Sciences, Beijing JiaoTong University, Beijing 100044,China)  
This paper uses the properties of special functions, analyses fully the variances of intersection points of F distributed density curves when the second parameter changes. Then gains the differential equations about F distributed density curve by above analyses. Besides, this paper studies the limit state of density curve deeply, proves a certain stability of the changes of density curve when the second parameter tends to infinitely great.
【Fund】: 国家自然科学基金资助项目(19671004)
【CateGory Index】: O211.6
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