Results 21 to 30 of about 178 (165)
International Journal of Aerospace Engineering, Volume 2021, Issue 1, 2021., 2021 In this paper, a bounded finite‐time control strategy is developed for the final proximity maneuver of spacecraft rendezvous and docking exposed to external disturbance and input quantization. To realize the integrated control for spacecraft final proximity operation, the coupling kinematics and dynamics of attitude and position are modeled by feat of ...
Sai Zhang, Zhen Yang, Juan Du
wiley +1 more source
DEFORMATION QUANTIZATION OF COADJOINT ORBITS [PDF]
International Journal of Modern Physics B, 2000 A method for the deformation quantization of coadjoint orbits of semisimple Lie groups is proposed. It is based on the algebraic structure of the orbit. Its relation to geometric quantization and differentiable deformations is explored.
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Noncommutative phase spaces on Aristotle group [PDF]
QScience Connect, 2012 We realize noncommutative phase spaces as coadjoint orbits of extensions of the Aristotle group in a two dimensional space. Through these constructions the momenta of the phase spaces do not commute due to the presence of a naturally introduced magnetic ...
Ancille Ngendakumana +2 more
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Star products on coadjoint orbits [PDF]
Physics of Atomic Nuclei, 2001 We study properties of a family of algebraic star products defined on coadjoint orbits of semisimple Lie groups. We connect this description with the point of view of differentiable deformations and geometric quantization.
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Near-horizon extremal geometries: coadjoint orbits and quantization
Journal of High Energy Physics, 2018 The NHEG algebra is an extension of Virasoro introduced in [arXiv:1503.07861]; it describes the symplectic symmetries of (n + 4)-dimensional Near Horizon Extremal Geometries with SL(2, ℝ) × U(1) n+ 1 isometry. In this work we construct the NHEG group and
R. Javadinezhad +2 more
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On Algebraic Supergroups, Coadjoint Orbits and Their Deformations [PDF]
Communications in Mathematical Physics, 2004 In this paper we study algebraic supergroups and their coadjoint orbits as affine algebraic supervarieties. We find an algebraic deformation quantization of them that can be related to the fuzzy spaces of non commutative geometry.
FIORESI, RITA, Lledo M. A.
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Conformal blocks and bilocal vertex operator transition amplitudes
Journal of High Energy Physics, 2022 We revisit the construction of the 2d conformal blocks of primary operator four-point functions as bilocal vertex operator correlators. We find an additional interpretation as a path integral over the reparametrizations of an intermediate cylinder.
Gideon Vos
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The Mackey obstruction and the coadjoint orbits [PDF]
Transactions of the American Mathematical Society, 1994 This paper studies the Mackey obstruction representation theory at the coadjoint orbit level. It shows how to get rid of such obstructions and to get orbits of the "little groups". Such little group data is essential for inductive construction of coadjoint orbits of general Lie groups.
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Magnetic geodesic flows on coadjoint orbits [PDF]
Journal of Physics A: Mathematical and General, 2006 We describe a class of completely integrable $G$-invariant magnetic geodesic flows on (co)adjoint orbits of a compact connected Lie group $G$ with magnetic field given by the Kirillov-Konstant 2-form.
Bolsinov, Alexey V., Jovanovic, Bozidar
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Proceedings of the London Mathematical Society, Volume 121, Issue 4, Page 954-1032, October 2020., 2020 Abstract I provide an explicit construction of spectral curves for the affine E8 relativistic Toda chain. Their closed‐form expression is obtained by determining the full set of character relations in the representation ring of E8 for the exterior algebra of the adjoint representation; this is in turn employed to provide an explicit construction of ...
Andrea Brini
wiley +1 more source