Hopf diagrams and quantum invariants.
Hopf -crossed biproduct and related coquasitriangular structures
Hopf-Galois extensions for monoidal Hom-Hopf algebras
Hopf-Galois extensions for monoidal Hom-Hopf algebras are investigated. As the main result, Schneider's affineness theorem in the case of monoidal Hom-Hopf algebras is shown in terms of total integrals and Hopf-Galois extensions. In addition, we obtain an affineness criterion for relative Hom-Hopf modules which is associated with faithfully flat Hopf-Galois extensions of monoidal Hom-Hopf algebras.
How algebraic is algebra?
How large are left exact functors?
How to construct a Hovey triple from two cotorsion pairs
Let be an abelian category, or more generally a weakly idempotent complete exact category, and suppose we have two complete hereditary cotorsion pairs and in satisfying and . We show how to construct a (necessarily unique) abelian model structure on with (resp. ) as the class of cofibrant (resp. trivially cofibrant) objects, and (resp. ) as the class of fibrant (resp. trivially fibrant) objects.
How to make many-sorted algebras one-sorted
HSP subcategories of Eilenberg-Moore algebras.
Hull operators on a category of spaces of continuous functions on Hausdorff spaces
Hu's Primal Algebra Theorem revisited
It is shown how Lawvere's one-to-one translation between Birkhoff's description of varieties and the categorical one (see [6]) turns Hu's theorem on varieties generated by a primal algebra (see [4], [5]) into a simple reformulation of the classical representation theorem of finite Boolean algebras as powerset algebras.
Hyperoctahedral species.