condition of equivalence meaning in English

等价条件

In this paper , the author discusses the orthogonal transformation , pointing out that there is difference in essence between the two condition of equivalence
摘要对欧氏空间正交变换作了讨论，指明了两个等价条件的不同之处。
Owing to the strong condition of equivalence relation , there exist some limits , and it has been proved to be np - hard to find all reductions and a minimal reduction
由于等价关系条件较强，有一定的局限性，已经证明求所有约简和最小约简是np - hard问题。
This paper discusses the relationship between quasi - concave and pseudo - convex in the generalized convex function in the linear topological space and offers some conditions of equivalence
摘要讨论了线性拓扑空间上广义凸函数中的拟凸与伪凸之间的关系，并给出它们之间的一些等价条件。