二元平方凸函数和二元凸函数的关系  

Relation Between Square Convex Functions with Two Variables and Convex Functions with Two Variables

作　　者：成凯歌[1] CHENG Kaige(Department of Basic,Tourism College of Zhejiang,Hangzhou 311231,China)

机构地区：[1]浙江旅游职业学院基础部,浙江杭州311231

出　　处：《河南教育学院学报（自然科学版）》2018年第2期19-22,共4页Journal of Henan Institute of Education(Natural Science Edition)

摘　　要：凹凸性反映了函数的弯曲状态,二元函数的凹凸性刻画了函数对应的空间曲面的弯曲方向.二元平方凸函数在多个领域有广泛的应用价值,研究了二元平方凸函数和二元凸函数之间的关系.Convexity reflects the bending state of the function. The convex functions of two variables describe the bending direction of the space surface corresponding to the function, at the same time, the square convex function with two variables has been widely applied in many fields. The relationship between the square convex functions with two variables and convex functions with two variables were studied.

关 键 词：凸集 凸函数 平方凸函数 

分 类 号：O172.2[理学—数学]