Making the category of entwined modules into a braided monoidal category

The question of how the category of entwined modules can be made into a braided monoidal category is studied. First, the sufficient and necessary conditions making the category into a monoidal category are obtained by using the fact that if （A, C, ψ） is an entwining structure, then A × C can be made into an entwined module. The conditions are that the algebra and coalgebra in question are both bialgebras with some extra compatibility relations. Then given a monodial category of entwined modules, the braiding is constructed by means of a twisted convolution invertible map Q, and the conditions making the category form into a braided monoidal category are obtained similarly. Finally, the construction is applied to the category of Doi-Hopf modules and （α, β ）-Yetter-Drinfeld modules as examples.

Monoidal Category Approach to Dual Hom-quasi-Hopf Algebras

In this paper, we categorify a Hom-associative algebra by imposing the Homassociative law up to some isomorphisms on the multiplication map and requiring that these isomorphisms satisfy the Pentagon axiom, and obtain a 2-Hom-associative algebra. On the other hand, we introduce the dual Hom-quasi-Hopf algebra and show that any dual Homquasi-Hopf algebras can be viewed as a 2-Hom-associative algebra.

On the Braided Monoidal Categories of T-smash Products A ■_T H

Let A and H be Hopf algebra, T-smash product AT H generalizes twisted smash product A ＊ H. This paper shows a necessary and sufficient condition for T-smash product moduie category AT HM to be braided monoidal category.

Partial Doi-Hopf模的辫子Monoidal范畴

通过引入Monoidal Partial Doi-Hopf数组和模的概念及例子,得到Partial Doi-Hopf模范畴是一个Monoidal范畴.在此基础上根据多种重要模范畴的辫子结构构造了此范畴的辫子,并得到了使Partial Doi-Hopf模范畴成为辫子Monoidal范畴的充要条件.

Partial缠绕模的辫子monoidal范畴

给出了使partial缠绕模范畴成为辫子monoidal范畴的充要条件.

双交叉余积与Monoidal函子

设Ｈ和Ａ为双代数，Ｒ∈ＨＡ为弱Ｒ矩阵且Ｂ＝ＨＲＡ为双交叉余积，研究了ｍｏｎｏｉｄａｌ范畴ＨＭ，ＡＭ，ＨＭ×ＡＭ和ＢＭ之间的联系。

强余循环与辫子monoidal范畴

设 H为双代数 .σ∈ (H× H ) *是强余循环 ,本文证明在 m onoidal范畴μH中存在一个辫子 m onoidal子范畴μ( H ,σ) 。同时给出μ( H ,σ) =μH 的几个等价条件 ,从这些等价条件中得到 。

辫子monoidal范畴上M^H的相关Hopf模

设(H,σ)是余拟三角Hopf代数,则MH是辫子monoidal范畴MH上的相关Hopf模的基本结构定理是MH上的Hopf模的基本结构定理的推广。

对偶弱Rigid Monoidal模范畴

讨论了弱rigid monoidal范畴C上的模范畴M.将M对偶以后得到的对偶范畴M~∨和~∨M□通过验证发现对偶范畴也具有C模范畴结构□并且最后证明了模范畴M经过二次对偶以后得到的~∨田M~∨■与M作为C-模范畴的同构定理.

扭曲Smash余积的辫Monoidal范畴

主要讨论扭曲Smash余积余模范畴C×rH M,得到C×rHM是辫monoidal范畴的一个充要条件.

Monoidal范畴的函子范畴

给定一个monoidal范畴,通过范畴的扩张构造一类monoidal范畴,即证明monoidal范畴的函子范畴仍是monoidal范畴,并应用于域K上G-分次空间.

Category Theoretic Properties of the A. Rényi and C. Tsallis Entropies

The problem of embedding the Tsallis, Rényi and generalized Rényi entropies in the framework of category theory and their axiomatic foundation is studied. To this end, we construct a special category MES related to measured spaces. We prove that both of the Rényi and Tsallis entropies can be imbedded in the formalism of category theory by proving that the same basic partition functional that appears in their definitions, as well as in the associated Lebesgue space norms, has good algebraic compatibility properties. We prove that this functional is both additive and multiplicative with respect to the direct product and the disjoint sum (the coproduct) in the category MES, so it is a natural candidate for the measure of information or uncertainty. We prove that the category MES can be extended to monoidal category, both with respect to the direct product as well as to the coproduct. The basic axioms of the original Rényi entropy theory are generalized and reformulated in the framework of category MES and we prove that these axioms foresee the existence of an universal exponent having the same values for all the objects of the category MES. In addition, this universal exponent is the parameter, which appears in the definition of the Tsallis and Rényi entropies. It is proved that in a similar manner, the partition functional that appears in the definition of the Generalized Rényi entropy is a multiplicative functional with respect to direct product and additive with respect to the disjoint sum, but its symmetry group is reduced compared to the case of classical Rényi entropy.

二元模糊关系范畴的对称幺半范畴性

结合模糊关系范畴的概念给出了二元模糊关系范畴L_(b)Rel的概念.首先,讨论了范畴L_(b)Rel的积和余积的结构.其次,定义了张量积函子■,得到了L_(b)Rel是对称幺半范畴.进而,给出了范畴L_(b)Rel中的幺半群和余幺半群结构.最后,以二元模糊关系范畴L_(b)Rel作为纽带,构造了一个从模糊集范畴LSet到模糊关系范畴RelLL的忠实函子.

Weak rigid monoidal category

We define the right regular dual of an object X in a monoidal category l, and give several results regarding the weak rigid monoidal category. Based on the definition of the right regular dual, we construct a weak Hopf algebra structure of H = End（F） whenever （F, J） is a fiber functor from category l to Vec and every X ∈ l has a right regular dual. To conclude, we give a weak reconstruction theorem for a kind of weak Hopf algebra.

Cocycle deformations, braided monoidal categories and quasitriangularity

Let A be a bialgebra, R ∈ A A be a strong “cocycle”. It will be shown that the monoidal category _Auhas a braided monoidal subcategory and several equivalent conditions for (A, R ) to be a quasitriangular bialgebra will be given. Furthermore, it will be shown that A contains a finite dimensional subbialgebra which is a quasitriangular Hopf algebra if R is a YB-operator.

Symmetric centres of braided monoidal categories

This paper introduces the concept of ‘symmetric centres’ of braided monoidal categories. LetH be a Hopf algebra with bijective antipode over a fieldk. We address the symmetric centre of the Yetter-Drinfel’d module category: and show that a left Yetter-Drinfel’d moduleM belongs to the symmetric centre of and only ifM is trivial. We also study the symmetric centres of categories of representations of quasitriangular Hopf algebras and give a sufficient and necessary condition for the braid of, H? to induce the braid of , or equivalently, the braid of , whereA is a quantum commutativeH-module algebra

Smash coproduct and braided groups in braided monoidal category

A smash coproduct in braided monoidal category C is constructed and some conditions making the smash coproduct a Hopf algebra or braided Hopf algebra are given.It is shown that the smash coproduct B×H in HM is equivalent to the transmutation of Hopf algebra.Thus a method for transmutation theory is provided.Let a be 2-co-cycle and H a commutation Hopf algebra.A Hopf algebra Hσ is constructed.Hσ≌Hσ where Hσ is a transmutation of Hσ.The braided groups from some solutions of quantum Yang-Baxter equation are obtained.

The Braided Monoidal Structure on the Category of Comodules of Bimonads

We investigate how the category of comodules of bimonads can be made into a monoidal category.It suffices that the monad and comonad in question are bimonads,with some extra compatibility relation.On a monoidal category of comodules of bimonads,we cons true t a braiding and get the necessary and sufficien t conditions making it a braided monoidal category.As an application,we consider the category of comodules of corings and the category of entwined modules.

Monoidal functors on the category of representations of a triangular Hopf algebra

Let (H,R) be a triangular Hopf algebra. The monoidal functors on the category of representations of H is studied, and a universal quantum commutative algebra S e R(M) and a dual H° comodule M° for any H module M with an integral e are constructed. Both constructions given here have tensor isomorphism properties.

缠绕模的辫子范畴

该文给出了缠绕模范畴成为辫子范畴的充分必要条件.