Results 11 to 20 of about 601 (176)

Noncommutative Differential Geometry of Generalized Weyl Algebras [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2016
Elements of noncommutative differential geometry of ${\mathbb Z}$-graded generalized Weyl algebras ${\mathcal A}(p;q)$ over the ring of polynomials in two variables and their zero-degree subalgebras ${\mathcal B}(p;q)$, which themselves are generalized Weyl algebras over the ring of polynomials in one variable, are discussed.
Brzeziński, T., Tomasz Brzezinski
openaire   +7 more sources

Noncommutative Geometry in the Framework of Differential Graded Categories [PDF]

open access: yes, 2010
19 pages.
Snigdhayan Mahanta   +3 more
openaire   +5 more sources

31Lectures on Noncommutative Geometry

open access: yesActa Polytechnica, 2008
We present a short overview of noncommutative geometry. Starting with C* algebras and noncommutative differential forms we pass to K-theory, K-homology and cyclic (co)homology, and we finish with the notion of spectral triples and the spectral action.
A. Sitarz
doaj   +2 more sources

Comparison between two differential graded algebras in noncommutative geometry [PDF]

open access: yesProceedings - Mathematical Sciences, 2019
Starting with a spectral triple one can associate two canonical differential graded algebras (dga) defined by Connes and Fröhlich et al. For the classical spectral triples associated with compact Riemannian spin manifolds both these dgas coincide with the de-Rham dga.
Chakraborty, Partha Sarathi   +1 more
openaire   +4 more sources

Non-commutative complex differential geometry

open access: yesJournal of Geometry and Physics, 2013
This paper defines and examines the basic properties of noncommutative analogues of almost complex structures, integrable almost complex structures, holomorphic curvature, cohomology, and holomorphic sheaves. The starting point is a differential structure on a noncommutative algebra defined in terms of a differential graded algebra. This is compared to
Beggs, Edwin, Smith, S. Paul
openaire   +6 more sources

Deformation quantization and intrinsic noncommutative differential geometry

open access: yes, 2023
We provide an intrinsic formulation of the noncommutative differential geometry developed earlier by Chaichian, Tureanu, R. B. Zhang and the second author. This yields geometric definitions of covariant derivatives of noncommutative metrics and curvatures, as well as the noncommutative version of the first and the second Bianchi identities.
Gao, Haoyuan, Zhang, Xiao
openaire   +3 more sources

Field Theory on Curved Noncommutative Spacetimes [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
We study classical scalar field theories on noncommutative curved spacetimes. Following the approach of Wess et al. [Classical Quantum Gravity 22 (2005), 3511 and Classical Quantum Gravity 23 (2006), 1883], we describe noncommutative spacetimes by using (
Alexander Schenkel   +1 more
doaj   +2 more sources

Some aspects of noncommutative differential geometry

open access: yes, 1995
We discuss in some generality aspects of noncommutative differential geometry associated with reality conditions and with differential calculi. We then describe the differential calculus based on derivations as generalization of vector fields, and we show its relations with quantum mechanics. Finally we formulate a general theory of connections in this
Michel Dubois-Violette
openaire   +4 more sources

The standard model, the Pati–Salam model, and ‘Jordan geometry’

open access: yesNew Journal of Physics, 2020
We argue that the ordinary commutative and associative algebra of spacetime coordinates (familiar from general relativity) should perhaps be replaced, not by a noncommutative algebra (as in noncommutative geometry), but rather by a Jordan algebra ...
Latham Boyle, Shane Farnsworth
doaj   +1 more source

Home - About - Disclaimer - Privacy