supremum 中文意思是什麼
supremum
解釋
最小上界 上確界-
Given a ring, one always takes the supremum of some homological dimension of specified modules to obtain the corresponding global dimension, and to characterize the ring from outside
對于給定的結合環，人們往往通過對其上的一些模的某一種同調維數取上確界而得到環的相應的整體維數，進而從外部刻畫出環的特徵。 -
In this chapter, firstly, we apply a result of [ 20 ] to prove that for a class of quasisymmetric homeomorphisms with substantial boundary points, the maximal dilatation of the extremal quasiconformal extension equals the supremum of the ratios of the moduli of quadrilaterals, which improve the result of [ 148 ]
在本章中，我們首先利用了文[ 20 ]的結果，研究了單位圓周上一類具有本質邊界點的擬對稱同胚，證明了它的極值擬共形延拓的最大伸縮商等於四邊形模之比的上確界，改進了文148的有關結果 -
In this article, we study the infinite boundary value problems for first order nonlinear impulsive differential equations with " supremum " by means of the upper and lower solution method and the monotone iterative technique, and obtain the existence theorems for their extremal solutions
摘要應用上下解方法和單調迭代技術研究了帶有上確界的一階非線性脈沖微分方程無窮邊值問題，並獲得了其極值解的存在性結果。 -
Infinite boundary value problems for nonlinear impulsive differential equations with quot; supremum quot
的非線性脈沖微分方程無窮邊值問題 -
According to the quasi - invariance of the moduli of quadrilaterals under quasiconformal mappings, it is natural to think of approximating the maximal dilatation of the extremal quasiconformal mapping by the ratios of the moduli of quadrilaterals. a key problem is : is it true that the supremum of the ratios of the moduli of quadrilaterals equals the maximal dilatation of the extremal quasiconformal mapping
根據擬共形映射下四邊形模的擬不變性，利用四邊形模之比來逼近它是人們比較容易想到的方法，但關鍵的問題是四邊形模之比的上確界是否等於極值映射的最大伸縮商
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