For QTAG-modules the concept of quasi-isomorphism was defined by Mehdi [5]. Two QTAG-modules are quasi-isomorphic when they contain cobounded submodules. Here we prove that cobounded submodules inherit basic submodules. Then we impose some restrictions on quasi-isomorphism and find that quasi...
网络准同构 网络释义 1. 准同构 是准同构(quasi-isomorphism)。 frankliou.wordpress.com|基于2个网页
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and explicit quasi-isomorphisms from to two complexes, as described above, for the appropriate choice of parameters, which give rise to this isomorphism. ... P Taylor,AR Kustin 被引量: 0发表: 2008年 An Explicit, Characteristic-Free, Equivariant Homology Equivalence Between Koszul Complexes and ...
;证明Tor symmetric, 对原projective resolution 取cone X, 为了对X tensor这个resolution, 把tensor的finite projective resolution看成是从这个resolution拆出来两个complex的morphism的cone, 把cone X即complex代入到这个cone中, 对dimension of finite complex作induction, 得到quasi-isomorphism, i.e. Hn() equals3....
Graph Isomorphism in Quasipolynomial Time 来自 arXiv.org 喜欢 0 阅读量: 162 作者: L Babai 摘要: We show that the Graph Isomorphism (GI) problem and the more general problems of String Isomorphism (SI) andCoset Intersection (CI) can be solved in quasipolynomial(exp((logn)O(1))) time....
Quasi-isomorphic variantsFor QTAG-modules the concept of quasi-isomorphism was defined by Mehdi [5]. Two QTAG-modules are quasi-isomorphic when they contain cobounded submodules. Here we prove that cobounded submodules inherit basic submodules. Then we impose some restrictions on quasi-...
Varchenko (Advanced series in mathematical physics / editors-in-charge, D.H. Phong, S.-T. Yan, vol. 21) World Scientific, c1995A VarchenkoAdvanced Series in Mathematical Physics, 21 World Scientific, River Edge, Nj
quasi-isomorphismThis paper investigates to which extent a self-small mixed Abelian group G of finite torsion-free rank is determined by the groups Hom(G,C) where C is chosen from a suitable class of Abelian groups. We show that G is determined up to quasi-isomorphism if is the class of...
Quasi-isomorphisms of Koszul complexesdoi:10.1090/S0002-9939-99-05071-6José J. M. SotoAmerican Mathematical Society, AMS