非紧流形的英文

noncompact manifold

• 非:    mistake; wrong; er ...
• 紧:    taut; tight
• 形:    form; shape

例句与用法

1. For the diffusion on noncompact manifolds , algebraic convergence in l ^ 2 - sense is studied . some criteria for the convergence are presented
   摘要考虑非紧流形上的扩散过程，得到了其l ^ 2代数式收敛的充要条件和必要条件。
2. Roe algebras ' arose from the index theory on noncompact complete rieman - nian manifolds , and is a class of concrete c - algebras associated to the coarse structure of metric spaces
   Roe代数起源于非紧流形上的指标理论，是反映度量空间粗结构的一类具体的c ~ * -代数。
3. In chapter 3 , we will estimate the first eigenvalue of laplacian from below on manifolds with a little negative curvature . in chapter 4 , we will prove the existence of bounded nontrivial harmonic functions on some classes of complete manifolds which will generalize the results of s . y . cheng ' s
   在第三章，我们将给出具有小负曲率的流形上laplace算子的第一特征值的下界估计；第四章，我们会给出一类完备非紧流形上非平凡的有界调和函数的存在性，推广了s . y . cheng的结果。
4. The article stated here will give some remarks to the following equation in two cases : for the case > 0 , the equation expresses the eigenvalue of the laplacian while for the case = 0 , it is the existence of nontriv - ial bounded harmonic functions on complete noncompact manifolds
   本文中我们主要分两种情况来讨论了关于laplace算子的方程： u + u = 0 ， r ~ + { 0 }对应于0 ，是riemann流形上laplace算子的特征值问题，而对应于= 0则是完备非紧流形上非平凡的有界调和函数的存在性问题。