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Numerical calculus algorithms which estimate derivatives and integrals from data series acquired either via measurements or by sampling functions are essential in scientific computing. To date, a few quantum algorithms have been developed…

Quantum Physics · Physics 2026-03-23 Jordan Cioni , Fabio Semperlotti

A noncommutative-geometric formalism of framed principal bundles is sketched, in a special case of quantum bundles (over quantum spaces) possessing classical structure groups. Quantum counterparts of torsion operators and Levi-Civita type…

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

The spaces of higher-order differential operators (in Dimension 1|2), which are modules over the stringy Lie superalgebra K(2), are isomorphic to the corresponding spaces of symbols as orthosymplectic modules in non resonant cases. Such an…

Mathematical Physics · Physics 2011-06-29 Najla Mellouli

A geometric categorification is given for arbitrary-large-finite-dimensional quotients of quantum osp(1|2) and the tensor product of its simple modules. The modified quantum osp(1|2) of Clark-Wang, a new version in this paper and the…

Representation Theory · Mathematics 2013-09-09 Zhaobing Fan , Yiqiang Li

We develop a technique for studying first-order codifferential calculi (FOCCs) initiated by Doi and Quillen in the context of cyclic cohomology. Their classification, for a given coalgebra, reduces to the classification of subbicomodules in…

Quantum Algebra · Mathematics 2026-04-14 Andrzej Borowiec , Patryk Mieszkalski

We study unbounded invariant and covariant derivations on the quantum disk. In particular we answer the question whether such derivations come from operators with compact parametrices and thus can be used to define spectral triples.

Operator Algebras · Mathematics 2017-09-26 Slawomir Klimek , Matt McBride , Sumedha Rathnayake , Kaoru Sakai , Honglin Wang

Noncommutative differential calculus on quantum Minkowski space is not separated with respect to the standard generators, in the sense that partial derivatives of functions of a single generator can depend on all other generators. It is…

Quantum Algebra · Mathematics 2007-05-23 Fabian Bachmaier , Christian Blohmann

The notion of quantum embedding is considered for two classes of examples: quantum coadjoint orbits in Lie coalgebras and quantum symplectic leaves in spaces with non-Lie permutation relations. A method for constructing irreducible…

Quantum Algebra · Mathematics 2007-05-23 M. V. Karasev

We wish to report here on a recent approach to the non-commutative calculus on $q$-Minkowski space which is based on the reflection equations with no spectral parameter. These are considered as the expression of the invariance (under the…

High Energy Physics - Theory · Physics 2008-02-03 J. A. de Azcárraga , F. Rodenas

The quantum Euclidean spheres, $S_q^{N-1}$, are (noncommutative) homogeneous spaces of quantum orthogonal groups, $\SO_q(N)$. The *-algebra $A(S^{N-1}_q)$ of polynomial functions on each of these is given by generators and relations which…

K-Theory and Homology · Mathematics 2009-11-07 Eli Hawkins , Giovanni Landi

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…

q-alg · Mathematics 2008-02-03 Michel Dubois-Violette

The algebras obtained as fixed points of the action of the cyclic group $Z_N$ on the coordinate algebra of the quantum disc are studied. These can be understood as coordinate algebras of quantum or non-commutative cones. The following…

Quantum Algebra · Mathematics 2016-01-20 Tomasz Brzeziński

The paper describes known and new results about finite difference calculus on configuration spaces. We describe finite difference geometry on configuration spaces, connect finite difference operators with cannonical commutation relations,…

Mathematical Physics · Physics 2025-10-27 Dmitri Finkelshtein , Yuri Kondratiev , Eugene Lytvynov , Maria Joao Oliveira

One says that a pair (P,Q) of ordinary differential operators specify a quantum curve if [P,Q]=const. If a pair of difference operators (K,L) obey the relation KL=const LK we say that they specify a discrete quantum curve. This terminology…

Mathematical Physics · Physics 2015-06-11 Albert Schwarz

Use of certain non-commuting variables is considered in first-order differential equations. Superspace variables are discussed within the setting of first-order ordinary differential equations and n-ary algebras. Results on quadratic…

Mathematical Physics · Physics 2013-11-21 M. Legare

In this follow-up of the article: Quantum Group of Isometries in Classical and Noncommutative Geometry(arXiv:0704.0041) by Goswami, where quantum isometry group of a noncommutative manifold has been defined, we explicitly compute such…

Quantum Algebra · Mathematics 2009-01-30 Debashish Goswami , Jyotishman Bhowmick

We calculate the first Hochschild cohomology group of quantum matrices, the quantum general linear group and the quantum special linear group in the generic case when the deformation parameter is not a root of unity. As a corollary, we…

Quantum Algebra · Mathematics 2007-05-23 S Launois , T H Lenagan

Understanding and predicting the properties of solid-state materials from first-principles has been a great challenge for decades. Owing to the recent advances in quantum technologies, quantum computations offer a promising way to achieve…

We provide the Cartan calculus for bicovariant differential forms on bicrossproduct quantum groups $k(M)\lrbicross kG$ associated to finite group factorizations $X=GM$ and a field $k$. The irreducible calculi are associated to certain…

Quantum Algebra · Mathematics 2007-05-23 F. Ngakeu , S. Majid , J-P. Ezin

A new approach is suggested to quantum differential calculus on certain quantum varieties. It consists in replacing quantum de Rham complexes with differentials satisfying Leibniz rule by those which are in a sense close to Koszul complexes…

Quantum Algebra · Mathematics 2008-11-26 P. Akueson , D. Gurevich