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We discuss the precanonical quantization of fields which is based on the De Donder--Weyl (DW) Hamiltonian formulation and treats the space and time variables on an equal footing. Classical field equations in DW Hamiltonian form are derived…

High Energy Physics - Theory · Physics 2015-04-07 I. V. Kanatchikov

The first purpose of this article is to provide conditions for a bounded operator in $L^2(\R^n)$ to be the Weyl (resp. anti-Wick) quantization of a bounded continuous symbol on $\R^{2n}$. Then, explicit formulas for the Weyl (resp.…

Analysis of PDEs · Mathematics 2018-06-14 Laurent Amour , Jean Nourrigat

We give a detailed exposition of the "vectorized" notation for dealing with quantum operations. This notation is used to highlight the relationships between representations of completely-positive dynamics. Vectorization considerably…

Quantum Physics · Physics 2011-08-19 Alexei Gilchrist , Daniel R. Terno , Christopher J. Wood

We establish a cluster theoretical interpretation of the isomorphisms of [F.-H.-O.-O., J. Reine Angew. Math., 2022] among quantum Grothendieck rings of representations of quantum loop algebras. Consequently, we obtain a quantization of the…

Representation Theory · Mathematics 2023-05-09 Ryo Fujita , David Hernandez , Se-jin Oh , Hironori Oya

A generalized Weyl quantization formalism for a particle on the circle investigated in \cite{1} is developed. A Wigner function for the state $\hat{\varrho}$ and the kernel $\mathcal{K}$ for a particle on the circle is defined and its…

Mathematical Physics · Physics 2015-06-18 Maciej Przanowski , Przemyslaw Brzykcy , Jaromir Tosiek

Following a recent group theoretical quantization of the symplectic space S={(phi in R mod 2pi, p>0)} in terms of irreducible unitary representations of the group SO(1,2) the present paper proposes an application of those results to the old…

Quantum Physics · Physics 2007-05-23 H. A. Kastrup

We clarify some aspects of quantum group gauge theory and its recent generalisations (by T. Brzezinski and the author) to braided group gauge theory and coalgebra gauge theory. We outline the diagrammatic version of the braided case. We…

q-alg · Mathematics 2008-02-03 S. Majid

A factor-graph representation of quantum-mechanical probabilities (involving any number of measurements) is proposed. Unlike standard statistical models, the proposed representation uses auxiliary variables (state variables) that are not…

Information Theory · Computer Science 2017-06-13 Hans-Andrea Loeliger , Pascal O. Vontobel

The review is devoted to topological global aspects of quantal description. The treatment concentrates on quantizations of kinematical observables --- generalized positions and momenta. A broad class of quantum kinematics is rigorously…

Mathematical Physics · Physics 2009-11-07 H. -D. Doebner , P. Stovicek , J. Tolar

Let M be a manifold with an action of a Lie group G, $\A$ the function algebra on M. The first problem we consider is to construct a $U_h(\g)$ invariant quantization, $\A_h$, of $\A$, where $U_h(\g)$ is a quantum group corresponding to G.…

Quantum Algebra · Mathematics 2007-05-23 J. Donin

This paper is a survey on invariants of representations of quivers and their generalizations. We present the description of generating systems for invariants and relations between generators.

Representation Theory · Mathematics 2009-04-27 A. A. Lopatin , A. N. Zubkov

Schwinger's algebra of selective measurements has a natural interpretation in the formalism of groupoids. Its kinematical foundations, as well as the structure of the algebra of observables of the theory, was presented in two previous…

Mathematical Physics · Physics 2020-04-07 Florio M. Ciaglia , Alberto Ibort , Giuseppe Marmo

We define generalized bialgebras and Hopf algebras and on this basis we introduce quantum categories and quantum groupoids. The quantization of the category of linear (super)spaces is constructed. We establish a criterion for the classical…

q-alg · Mathematics 2008-02-03 Theodore Voronov

Lie symmetries of K(m,n) equations with time-dependent coefficients are classified. Group classification is presented up to widest possible equivalence groups, the usual equivalence group of the whole class for the general case and…

Mathematical Physics · Physics 2014-04-01 Kyriakos Charalambous , Olena Vaneeva , Christodoulos Sophocleous

One can argue that on flat space $\mathbb{R}^d$ the Weyl quantization is the most natural choice and that it has the best properties (e.g. symplectic covariance, real symbols correspond to Hermitian operators). On a generic manifold, there…

Mathematical Physics · Physics 2020-05-07 Jan Dereziński , Adam Latosiński , Daniel Siemssen

Let G be a group of automorphisms of a ranked poset Q and let N_{k} denote the number of orbits on the elements of rank k in Q. What can be said about the N_{k} for standard posets, such as finite projective spaces or the Boolean lattice?…

Group Theory · Mathematics 2011-10-25 Valery Mnukhin , Johannes Siemons

In this review, we have reached from the most basic definitions in the theory of groups, group structures, etc. to representation theory and irreducible representations of the Poincar'e group. Also, we tried to get a more comprehensible…

Group Theory · Mathematics 2024-09-04 Meysam Hassandoust

There is a mismatch between the standard theoretical analyses of statistical machine learning and how learning is used in practice. The foundational assumption supporting the theory is that we can represent features and models using…

Machine Learning · Computer Science 2019-05-29 Annie Cherkaev , Waiming Tai , Jeff Phillips , Vivek Srikumar

This is a survey article describing the various ways in which the Kauffman bracket skein module is a quantization of surface group characters. These include a purely heuristic sense of deformation of a presentation, a Poisson quantization,…

q-alg · Mathematics 2008-02-03 Doug Bullock , Charles Frohman , Joanna Kania-Bartoszynska

We will introduce the notion of inductive limits of compact quantum groups as $W^*$-bialgebras equipped with some additional structures. We also formulate their unitary representation theories. Those give a more explicit…

Operator Algebras · Mathematics 2019-11-26 Ryosuke Sato