共查询到20条相似文献,搜索用时 53 毫秒
1.
2.
3.
本文研究与Hopf代数H关联之YeterDrinfel’d范畴YHD中的辫化余交换余代数C,证明HYD中左C-余模范畴HYD是张量范畴,且HYD中辫结构Ψ诱导CHYD中一辫结构当且仅当对CHDY中任意对象N有ΨN,CΨC,NCΓN=CYDΓN;由此导致新的辫化张量范畴. 相似文献
4.
H-弱余模余代数和交叉余积 总被引:3,自引:0,他引:3
王栓宏 《数学年刊A辑(中文版)》1995,(4)
引进了交叉积的对偶交叉余积,证明了:余Cleft模余代数的结构定理(作为余代数);如果为Hopf代数余可裂正合序列,那么作为Hopf代数,由此有强增广余代数C的结构定理(作为双代数);如果为Hopf代数可裂正合序列,那么作为Hopf代数并简单地讨论了C×αH的余半单性. 相似文献
5.
设$mathcal{A}$ 是一个Abel范畴,且 $(mathcal{X}, mathcal{Z},mathcal{Y})$ 是一个完全遗传余挠三元组.介绍 $mathcal{A}$ 的 $n$-$mathcal{Y}$-余倾斜子范畴的定义,并给出 $n$-$mathcal{Y}$-余倾斜子范畴的一个刻画,类似于 $n$-余倾斜模的 Bazzoni 刻画.作为应用,证明了在一个几乎 Gorenstein 环 $R$ 上, 如果 $mathcal{GP}$ 是 $n$-$mathcal{GI}$-余倾斜的, 那么 $R$ 是一个 $n$-Gorenstein 环, 其中 $mathcal{GP}$ 表示 Gorenstein 投射 $R$-模组成的子范畴且 $mathcal{GI}$ 表示 Gorenstein 内射 $R$-模组成的子范畴. 进而, 研究 任意环$R$上的$n$-余星子范畴, 以及关于余挠三元组 $(mathcal{P}, R$-Mod, $mathcal{I})$ 的 $n$-$mathcal{I}$-子范畴与 $n$-余星子范畴之间的关系, 其中 $mathcal{P}$ 表示投射左 $R$-模组成的子范畴且 $mathcal{I}$ 表示内射左 $R$-模组成的子范畴. 相似文献
6.
给出了辫子monoidal范畴C中的smash余积结构及使它成为Hopf代数或辫子Hopf代数的条件。在重要的范畴HM中证明了一类辫子群与任何Hopf代数作smash余积是某个Hopf代数的变形,为变形理论提供了方法。对2-余循环σ构造了Hσ,当H为变换时,证明它同构于Hσ经变形后的辫子群(Hσ)=A(Hσ,id,Hσ)。特别地,由某些杨-Baxter方程的解可构造出辫子群。 相似文献
7.
郑艳霞 《数学的实践与认识》2014,(9)
研究了超滤函子余代数范畴set_(F_u)的乘积和余积问题.首先构造了集合乘积上的超滤,讨论集合乘积上超滤的存在形式;接着利用超滤函子的性质给出了范畴set_(F_u)的有限乘积以及任意余积构造;最后证明了范畴set_(F_u)的终对象存在.改进了Gumm关于滤子函子的研究结果,深化了相关文献关于超滤函子余代数的研究. 相似文献
8.
广义Frame与广义Frame的商 总被引:2,自引:2,他引:0
本文将frame、frame同态、商frame与核的概念在范畴意义下作推广,并且证明Frame范畴是广义Frame范畴的反射子范畴.进而讨论了一个广义frame A的商与A上核函子之间的关系.特别地,我们证明了A上全部核函子所构成的范畴N(A)是一个广义frame. 相似文献
9.
10.
11.
12.
陈娟 《数学的实践与认识》2012,(1):188-194
κ-线性范畴是有限维κ-代数的自然推广.对应于双扩张代数,定义了κ-线性双扩张范畴■,并且证明了■Mod等价于四元组范畴■,推广了双扩张代数的模范畴理论. 相似文献
13.
Zhi-Wei Li 《代数通讯》2013,41(9):3725-3753
Beligiannis and Marmaridis in 1994, constructed the one-sided triangulated structures on the stable categories of additive categories induced from some homologically finite subcategories. We extend their results to slightly more general settings. As an application of our results, we give some new examples of one-sided triangulated categories arising from abelian model categories. An interesting outcome is that we can describe the pretriangulated structures of the homotopy categories of abelian model categories via those of stable categories. 相似文献
14.
Let 𝒞 be an additive category. Denote by End(𝒞) the endomorphism category of 𝒞, i.e., the objects in End(𝒞) are pairs (C,c) with C∈𝒞,c∈End𝒞(C), and a morphism f:(C,c)→(D,d) is a morphism f∈Hom𝒞(C,D) satisfying fc?=?df. This paper is devoted to an approach of the general theory of the endomorphism category of an arbitrary additive category. It is proved that the endomorphism category of an abelian category is again abelian with an induced structure without nontrivial projective or injective objects. Furthermore, the endomorphism category of any nontrivial abelian category is nonsemisimple and of infinite representation type. As an application, we show that two unital rings are Morita equivalent if and only if the endomorphism categories of their module categories are equivalent. 相似文献
15.
A coherence result for symmetric monoidal closed categories with biproducts is shown in this paper. It is also explained how to prove coherence for compact closed categories with biproducts and for dagger compact closed categories with dagger biproducts by using the same technique. 相似文献
16.
文章研究了三角范畴D及其coherent函子范畴A(D)的recollement之间的关系.利用D的recollement可以诱导A(D)的prerecollement,文章证明了该prerecollement是recollement的充分必要条件是D的recollement是可裂的;并且D的recollement可以诱导A(D)的prerecollement. 相似文献
17.
Kai Wang & Jingcheng Dong 《数学研究》2024,57(4):437-445
In this paper, we study the group extension of a Tambara-Yamagami category which has Frobenius-Perron dimension $2pq,$ where $p,q$ are prime numbers. Weprove that there are two possible category types when $pne q,$ and five possible categorytypes when $p=q.$ 相似文献
18.
Cyclic posets are generalizations of cyclically ordered sets. In this article, we show that any cyclic poset gives rise to a Frobenius category over any discrete valuation ring R. The stable category of a Frobenius category is always triangulated and has a cluster structure in many cases. The continuous cluster categories of [14], the infinity-gon of [12], and the m-cluster category of type A ∞ (m ≥ 3) [13] are examples of this construction as well as some new examples such as the cluster category of ?2. An extension of this construction and further examples are given in [16]. 相似文献
19.
20.
XiaoJuan Zhao 《中国科学 数学(英文版)》2014,57(11):2329-2334
Let A and B be finite-dimensional algebras over a field k of finite global dimension. Using some results of Gorsky in “Semi-derived Hall algebras and tilting invariance of Bridgeland-Hall algebras”, we prove that if A and B are derived equivalent, then the corresponding m-periodic derived categories are triangulated equivalent. 相似文献