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[期刊论文] 作者:CUI Deng-lan,LI Yang-cheng, 来源:应用数学和力学(英文版) 年份:2004
Based on the contact equivalent relation of smooth map-germs in singularity theory, the stability of equivariant bifurcation problems with two types of state va...
[期刊论文] 作者:GUO Rui-zhi,LI Yang-cheng, 来源:应用数学和力学(英文版) 年份:2004
Based on the left-right equivalent relation of smooth map-germs in singularity theory, the unfoldings of multiparameter equivariant bifurcation problems with re...
[期刊论文] 作者:GUO Rui-zhi,LI Yang-cheng, 来源:黑龙江科技学院学报 年份:2005
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
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