Abstract
Let π be a group. The main purpose of this paper is to provide further examples of crossed π-categories in the sense of Turaev. For this, we first introduce the notion of weak Hopf π-algebra as the dual notion of weak Hopf π-coalgebra and investigate the properties of weak Hopf π-algebra keeping close to weak Hopf algebra in sense of Böhm et al. It is shown that the category of the copresentations of weak Hopf π-algebra is braided crossed π-category. Finally, we shall consider the notion of weak Doi-Hopf group module in the weak Hopf π-algebra setting, and discuss the separability of a class of functors for the category of weak Doi-Hopf π-modules to the category of comodule over a suitable coalgebras. Also, the applications of our theories are presented.
References
[1] BÖHM, G.-NILL, K.-SZLACHANYI, K.: Weak Hopf algebras I: integral theory and C∗-structure, J. Algebra 221 (1999), 385-438.10.1006/jabr.1999.7984Search in Google Scholar
[2] CAENEPEEL, S.-DE LOMBAERDE, M.: A categorical approach to Turaev’s Hopf group-coalgebras, Comm. Algebra 34 (2006), 2631-2657.10.1080/00927870600651430Search in Google Scholar
[3] CHEN, Q. G.-WANG, S. H.: Separable functors for the category of Doi-Hopf π-modules, Abh. Math. Semin. Univ. Hambg. 81 (2011) 261-272.10.1007/s12188-011-0058-zSearch in Google Scholar
[4] FREYD, P. J.-YETTER, D. N.: Braided compact closed categories with applications to lowdimensional topology, Adv. Math. 77 (1989), 156-182.10.1016/0001-8708(89)90018-2Search in Google Scholar
[5] NĂSTĂSESCU, C.-VAN DEN BERGH, M.-VAN OYSTAEYEN, F.: Separable functors applied to graded rings, J. Algebra 123 (1989), 397-413.10.1016/0021-8693(89)90053-7Search in Google Scholar
[6] RAFAEL, M. D.: Separable functors revised, Comm. Algebra 18 (1990), 1445-1459.10.1080/00927879008823975Search in Google Scholar
[7] TURAEV, V. G.: Homotopy field theory in dimension 3 and crossed group-categories, GT/0005291.Search in Google Scholar
[8] TURAEV, V. G.: Homotopy Quantum Field Theory (with appendices by M. M¨uger and A. Virelizier). Tracts in Math., Vol. 10, European Math. Soc., Helsinki, 2010.10.4171/086Search in Google Scholar
[9] VAN DAELE, A.-WANG, S. H.: New braided crossed categories and Drinfeld quantum double for weak Hopf π-coalgebras, Comm. Algebra 36 (2008), 2341-2386.10.1080/00927870701509420Search in Google Scholar
[10] VIRELIZIER, A.: Hopf group-coalgebras, J. Pure Appl. Algebra 171 (2002), 75-122.10.1016/S0022-4049(01)00125-6Search in Google Scholar
[11] WANG, S. H.: Coquasitrigular Hopf group algebras and Drinfel’d co-doubles, Comm. Algebra 35 (2007), 77-101.10.1080/00927870601041334Search in Google Scholar
[12] ZUNINO, M.: Double construction for crossed Hopf coalgebra, J. Algebra 278 (2004), 43-75.10.1016/j.jalgebra.2004.03.019Search in Google Scholar
[13] ZUNINO, M.: Yetter-Drinfeld modules for Turaev crossed structures, J. Pure Appl. Algebra 193 (2004), 313-343.10.1016/j.jpaa.2004.02.014Search in Google Scholar
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Articles in the same Issue
- Fuzzy Pseudo Subalgebras and Ideals of Pseudo D-Algebras
- Five Curious Congruences Modulo p2
- On the Hybrid Mean Value Involving Dedekind Sums and Kloosterman Sums
- Constructing New Crossed Group Categories Over Weak Hopf Group Algebras
- Generalization of Hilbert Inequality with Some Parameters
- Some Applications of Differential Subordination of p-Valent Functions
- Coefficient Estimates and Quasi-Subordination Properties Associated with Certain Subclasses of Analytic and Bi-Univalent Functions
- On Properties of Entire Solutions of Difference Equations and Difference Polynomials
- On the Ψ-Strong Stability of Nonlinear Lyapunov Matrix Differential Equations
- On the Existence of Solutions of Ordinary Differential Equations in Banach Spaces
- Global Dynamics of a Delayed n + m-Species Competition Predator-Prey System on Time Scales
- Comparison Of (G′/G)-Methods for Finding Exact Solutions of the Drinfeld-Sokolov System
- A Generalization of Cyclic Amenability of Banach Algebras
- n-Weak Module Amenability of Triangular Banach Algebras
- On a Class of Operator-Differential Equations of the Third Order With Multiple Characteristics on the Whole Axis in the Weighted Space
- Optimality Conditions for Vector Equilibrium Problems with Set-Valued Mappings and Cone Constraints
- Classification of the Blaschke Isoparametric Hypersurfaces in Lorentzian Space Forms
- A New Proof of a Theorem on Long Cycles