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HCM: Hausdorff Center for Mathematics
Welcome at the Hausdorff Center for Mathematics, a Cluster of Excellence established 2006 at the University of Bonn under the title "Mathematics: Foundations, Models ...
Separation axioms. T1-Space. Cofinite topology. Hausdorff ...
2] If x ≠ y, then there are disjoint open sets U and V that contain x and y, respectively. See Fig. 1. Note that a Hausdorff space is always a T 1-space.
Greatest Mathematicians born between 1860 and 1975 A.D.
Greatest Mathematicians born between 1860 and 1975 A.D. Biographies of the greatest mathematicians are in separate files by birth year:
Chapter 4: Calculating Fractal Dimensions - Wahl
Calculating Fractal Dimension In classical geometry, shapes have integer dimensions. A point has a dimension of , a line has a dimension of , an ...
Cantor set - Wikipedia
In mathematics, the Cantor set is a set of points lying on a single line segment that has a number of remarkable and deep properties. It was discovered in 1874 by ...
Department of Mathematics | University of Chicago
Producing world-class mathematics research and devoted to excellence in teaching.
The 100 Greatest Mathematicians -
List of the Greatest Mathematicians ever and their Contributions
为什么度量空间一定是Hausdorff空间? - 知乎
度量空间X, 考虑两点x,y属于X, x≠y, 令a=d(x,y) 则以x为球心,a/2为半径的球是包含x的开集合,與以y为球心,a/2为半径的球不交。
4.8* Hausdorff维数及其相关(8)—— 万法归一
目标与步骤: 1. 对不起,因为我是生活在二次元的女孩【拓扑维数】; 2. 凿壁偷光的Cantor先生【Cantor集】; 3.
Matrice de rotation — Wikipédia
En mathématiques, et plus précisément en algèbre linéaire, une matrice de rotation Q est une matrice orthogonale de déterminant 1, ce qui peut s'exprimer par ...