Computing the singular homology (or cohomology) groups of a spaceXis generally very difficult. J.H.C. Whitehead invented a class of spaces called CW complexes for which the computation of the singular homology groups is much more tractable. Roughly speaking, a CW complexXis built up ...
规范用词CW复形的同调 英文翻译homology of CW complex 所属学科数学>几何学>拓扑学>代数拓扑学 名词审定数学名词审定委员会 见载刊物《数学名词》 科学出版社 公布时间1993年
Thisfact justifies the construction of P^^X), though it is to some extent absurdto replace a nice η-dimensional CW-complex X" by a CW-complex Pn_1(X)which in general is infinite dimensional, and the homology of which is veryhard to compute. The fact that a homotopy type can be bui...
We show that the topological cycle space of a locally finite graph is a canonical quotient of the first singular homology group of its Freudenthal compacti... DP Sprüssel - 《Combinatorica》 被引量: 20发表: 2010年 On Spaces Having the Homotopy Type of a CW-Complex Borsuk [2] has con-...
SHELLING-TYPE ORDERINGS AND SALVETTI COMPLEX 3 of the matching follows from the fact that the critical cells are in bijection with no-broken circuits, and thus with generators of the homology (by e.g. [17, 26]). This correspondence can be made more precise and explicit: we show that, ...
As a consequence it is shown that when the Euler characteristic is greater or equal to 1, the 2-complex invariant depends only on homology. The last statement doesn't hold for the negative Euler characteristic case.doi:10.48550/arXiv.math/0012212Ivelina Bobtcheva...
The orbit type stratification of a finite G-CW complex need not satisfy the frontier condition. For example, let X = S1 ∨S1 ∨S1 be the wedge of three circles along a basepoint ∗. Express X − ∗ as the union of three 展开 关键词: CW complex homotopically stratified orbit type...
Crystal structure of the human natural killer cell inhibitory receptor KIR2DL1-HLA-Cw4 complex. Inhibitory natural killer (NK) cell receptors down-regulate the cytotoxicity of NK cells upon recognition of specific class I major histocompatibility comp... QR Fan,EO Long,DC Wiley - 《Nature ...
CW复形的同调 CW复形的同调（homology of CW complex）是1993年发布的数学名词，出自《数学名词》第一版。公布时间 1993年经全国科学技术名词审定委员会审定发布。出处 《数学名词》第一版。