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We describe a locally trivial quantum principal U(1)-bundle over the quantum space S^2_{pq} which is a noncommutative analogue of the usual Hopf bundle. We also provide results concerning the structure of its total space algebra…

Quantum Algebra · Mathematics 2007-05-23 R. Matthes

A noncommutative-geometric generalization of the classical formalism of frame bundles is developed, incorporating into the theory of quantum principal bundles the concept of the Levi-Civita connection. The construction of a natural…

q-alg · Mathematics 2008-02-03 Mico Durdevic

We study almost real spectral triples on quantum lens spaces, as orbit spaces of free actions of cyclic groups on the spectral geometry on the quantum group $SU_q(2)$. These spectral triples are given by weakening some of the conditions of…

Quantum Algebra · Mathematics 2015-03-02 Andrzej Sitarz , Jan Jitse Venselaar

We understand quantum principal bundle as faithfully flat Hopf--Galois extensions, with a structure Hopf algebra coacting on a total space algebra and with base algebra given by the coinvariant elements. To endow such bundles with a…

Quantum Algebra · Mathematics 2025-05-16 Antonio Del Donno , Emanuele Latini , Thomas Weber

We translate some fundamental properties satisfied by topological principal bundles into the setting of Hopf-Galois extensions. The properties are: functoriality, homotopy, and triviality. The main new concept of the paper is the homotopy…

Quantum Algebra · Mathematics 2007-05-23 Christian Kassel

We realise Heckenberger and Kolb's canonical calculus on quantum projective (n-1)-space as the restriction of a distinguished quotient of the standard bicovariant calculus for Cq[SUn]. We introduce a calculus on the quantum (2n-1)-sphere in…

Quantum Algebra · Mathematics 2017-05-17 Réamonn Ó Buachalla

A generalization of classical gauge theory is presented, in the framework of a noncommutative-geometric formalism of quantum principal bundles over smooth manifolds. Quantum counterparts of classical gauge bundles, and classical gauge…

q-alg · Mathematics 2008-11-26 Mico Durdevic

The structure of quantum principal bundles is studied, from the viewpoint of Tannaka-Krein duality theory. It is shown that if the structure quantum group is compact, principal G-bundles over a quantum space M are in a natural…

q-alg · Mathematics 2008-02-03 Mico Durdevic

In this short article we review how the classical theory of principal fibre bundles (PFB) transcribes in an algebraic formalism. In this dual formulation, a PFB is given by a right co-module algebra ${\cal P}$ over a Hopf algebra ${\cal H}$…

Mathematical Physics · Physics 2007-05-23 F. J. Vanhecke , C. Sigaud , A. R. da Silva

In the framework of Category Theory, we study the association between finite--dimensional representations of a compact quantum group and quantum vector bundles with linear connections for a given quantum principal bundle with a principal…

Quantum Algebra · Mathematics 2025-05-21 Gustavo Amilcar Saldaña Moncada

The theory of principal bundles makes sense in any infinity-topos, such as that of topological, of smooth, or of otherwise geometric infinity-groupoids/infinity-stacks, and more generally in slices of these. It provides a natural geometric…

Algebraic Topology · Mathematics 2023-07-03 Thomas Nikolaus , Urs Schreiber , Danny Stevenson

The classification problem for principal fibre bundles over two-dimensional CW-complexes is considered. Using the Postnikov factorization for the base space of a universal bundle a Puppe sequence that gives an implicit solution for the…

Algebraic Topology · Mathematics 2007-05-23 Yu. A. Kubyshin

Let $k$ be a field of characteristic $0$. We consider principal bundles over a $k$-scheme with reductive structure group (not necessarily of finite type). It is showm in particular that for $k$ algebraically closed there exists on any…

Algebraic Geometry · Mathematics 2019-05-24 Peter O'Sullivan

We show that certain embeddable homogeneous spaces of a quantum group that do not correspond to a quantum subgroup still have the structure of quantum quotient spaces. We propose a construction of quantum fibre bundles on such spaces. The…

q-alg · Mathematics 2009-10-28 Tomasz Brzezinski

A fibre product construction is used to give a description of quantum line bundles over the generic Podles spheres by gluing two quantum discs along their boundaries. Representatives of the corresponding $K_0$-classes are given in terms of…

Quantum Algebra · Mathematics 2009-02-24 Elmar Wagner

The (left coalgebra) line bundle associated to the quantum Hopf fibration of any quantum two-sphere is shown to be a finitely generated projective module. The corresponding projector is constructed and its monopole charge is computed. It is…

Quantum Algebra · Mathematics 2010-12-13 Tomasz Brzezinski , Shahn Majid

It is shown that quantum homogeneous spaces of a quantum group H can be viewed as fibres of quantum fibrations with the total space H that are dual to coalgebra bundles. As concrete examples of such structures the fibrations with the…

q-alg · Mathematics 2009-10-30 Tomasz Brzezinski

A brief exposition of the general theory of characteristic classes of quantum principal bundles is given. The theory of quantum characteristic classes incorporates ideas of classical Weil theory into the conceptual framework of…

q-alg · Mathematics 2008-02-03 Mico Durdevic

A new global approach in the study of duality transformations is introduced. The geometrical structure of complex line bundles is generalized to higher order U(1) bundles which are classified by quantized charges and duality maps are…

High Energy Physics - Theory · Physics 2008-02-03 M. I. Caicedo , I. Martin , A. Restuccia

An algebraic framework for noncommutative bundles with (quantum) homogeneous fibres is proposed. The framework relies on the use of principal coalgebra extensions which play the role of principal bundles in noncommutative geometry which…

Quantum Algebra · Mathematics 2021-03-03 Tomasz Brzeziński , Wojciech Szymański