Results 21 to 30 of about 17,624 (148)
International Journal of Mathematics and Mathematical Sciences, 2011 We investigate the Shintani functions attached to the spherical and nonspherical principal series representations of 𝑆𝐿(3,𝐑). We give the explicit formulas of the radial part of Shintani functions and evaluate the dimension of the space of Shintani ...
Keiju Sono
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A compact spherical RGBD keyframe-based representation [PDF]
2015 IEEE International Conference on Robotics and Automation (ICRA), 2015 — This paper proposes an environmental representation approach based on hybrid metric and topological maps as a key component for mobile robot navigation. Focus is made on an ego-centric pose graph structure by the use of Keyframes to capture the local properties of the scene.
Gokhool, Tawsif +3 more
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3D face recognition with sparse spherical representations [PDF]
Pattern Recognition, 2010 This paper addresses the problem of 3D face recognition using simultaneous sparse approximations on the sphere. The 3D face point clouds are first aligned with a novel and fully automated registration process. They are then represented as signals on the 2D sphere in order to preserve depth and geometry information.
Sala, Llonch R. +3 more
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Concentric Spherical GNN for 3D Representation Learning.
Proposed for presentation at the SIAM CSE Minisymposium - Scientific Machine Learning: Algorithms and Applications held March 2, 2021 in Virtual, Virtual, Virtual., 2021 This paper has been submitted for conference ...
Fox, James +4 more
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The curious case of large-N expansions on a (pseudo)sphere
Nuclear Physics B, 2015 We elucidate the large-N dynamics of one-dimensional sigma models with spherical and hyperbolic target spaces and find a duality between the Lagrange multiplier and the angular momentum.
Alexander M. Polyakov +2 more
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Advances in High Energy Physics, 2016 The azimuthal and magnetic quantum numbers of spherical harmonics Ylm(θ,ϕ) describe quantization corresponding to the magnitude and z-component of angular momentum operator in the framework of realization of su(2) Lie algebra symmetry.
H. Fakhri
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Spherical indecomposable representations of Lie superalgebras
Journal of Algebra, 2020 We present a classification of all spherical indecomposable representations of classical and exceptional Lie superalgebras. We also include information about stabilizers, symmetric algebras, and Borels for which sphericity is achieved. In one such computation, the symmetric algebra of the standard module of $\mathfrak{osp}(m|2n)$ is computed, which in ...
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Efficient Spherical Harmonics Representation of 3D Objects [PDF]
15th Pacific Conference on Computer Graphics and Applications (PG'07), 2007 In this paper, we present a new and efficient spherical harmonics decomposition for spherical functions defining 3D triangulated objects. Such spherical functions are intrinsically associated to star-shaped objects. However, our results can be extended to any triangular object after segmentation into star-shaped surface patches and recomposition of the
Mousa, Mohamed +3 more
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New exact static solutions of Einstein-Maxwell field equations with a magnetic dipole
Results in Physics, 2021 The Bonnor field shed light on imposition of two magnetic poles, both with mass m, and strengths -m and m, that are situated at a coordinate distance 2b on a symmetry axis.
Sachin Kumar +3 more
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Spherical representations of Lie supergroups
Journal of Functional Analysis, 2015 The classical Cartan-Helgason theorem characterises finite-dimensional spherical representations of reductive Lie groups in terms of their highest weights. We generalise the theorem to the case of a reductive symmetric supergroup pair $(G,K)$ of even type. Along the way, we compute the Harish-Chandra $c$-function of the symmetric superspace $G/K$.
Alexander Alldridge +1 more
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