关于二阶混合偏导数相等的定理及推广
관우이계혼합편도수상등적정리급추엄
On Equality of Second Order Mixed Partial Derivatives
  • 万方数据
    高等数学研究 고등수학연구
    STUDIES IN COLLEGE MATHEMATICS
    2014年 2期 18-20 ,共3页

    李光亮

    리광량

    连续%相等%二阶混合偏导数 連續%相等%二階混閤偏導數
    련속%상등%이계혼합편도수
    continuation%equality%second order mixed partial derivatives
    介绍关于二阶混合偏导数相等的四个定理，讨论其关系，并给出两个推广。
    개소관우이계혼합편도수상등적사개정리，토론기관계，병급출량개추엄。
    Revisiting four theorems about the equivalence of the second order mixed partial derivatives ,this paper generalizes two theorems of them .
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