Results 21 to 30 of about 167,464,841 (288)
Electronic Journal of Qualitative Theory of Differential Equations, 2015 In this article we prove a classification theorem (Main theorem) of real planar cubic vector fields which possess two distinct infinite singularities (real or complex) and eight invariant straight lines, including the line at infinity and including ...
Cristina Bujac, Nicolae Vulpe
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Phase singularity annihilation in plasmonic nano-apertures via epsilon-near-zero metamaterials
APL Photonics, 2021 In this work, we performed an extensive theoretical and experimental study to unveil the underlying mechanisms related to the intensified transmittance in epsilon-near-zero (ENZ)-integrated plasmonic nano-apertures.
F. Ghasemzadeh +2 more
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Image based visual servoing with kinematic singularity avoidance for mobile manipulator [PDF]
PeerJ Computer ScienceThis article presents an implementation of visual servoing (VS) for a redundant mobile manipulator in an eye-in-hand configuration. We used the image based visual servoing (IBVS) scheme, which means the pose control of the robot is based on the error ...
Jesus Hernandez-Barragan +4 more
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S-matrix singularities and CFT correlation functions
Journal of High Energy Physics, 2017 In this note, we explore the correspondence between four-dimensional flat space S-matrix and two-dimensional CFT proposed by Pasterski et al. We demonstrate that the factorisation singularities of an n-point cubic diagram reproduces the AdS Witten ...
Carlos Cardona, Yu-tin Huang
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A Metaheuristic Optimization Approach for Trajectory Tracking of Robot Manipulators
Mathematics, 2022 Due to the complexity of manipulator robots, the trajectory tracking task is very challenging. Most of the current algorithms depend on the robot structure or its number of degrees of freedom (DOF).
Carlos Lopez-Franco +4 more
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The numerical solution of elliptic and parabolic partial differential equations with boundary singularities [PDF]
, 1976 A general numerical method is described for the solution of linear elliptic and parabolic partial differential equations in the presence of boundary singularities.
Furzeland, RM, Crank, J
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DISCONNECTED REGIONS OF STABLE CIRCULAR ORBITS IN PRESENCE OF MASSIVE SCALAR FIELD
Odessa Astronomical Publications, 2017 We study circular orbits around a static spherically symmetric configuration of General Relativity in presence of a nonlinear massive scalar field (SF). The problem deals with a family of solutions to Einstein – SF equations with the SF potentials that are
O. S. Stashko, V. I. Zhdanov
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Quantum cores of optical phase singularities [PDF]
, 2004 The nodal line singularities (optical vortices) of classical scalar optics are smoothed in quantum optics, because of spontaneous emission into unoccupied modes. The radius of the 'quantum core' surrounding each classical singularity is proportional to ??
Dennis, MR +5 more
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Q_l-cohomology projective planes and singular Enriques surfaces in characteristic two [PDF]
Épijournal de Géométrie Algébrique, 2019 We classify singular Enriques surfaces in characteristic two supporting a rank nine configuration of smooth rational curves. They come in one-dimensional families defined over the prime field, paralleling the situation in other characteristics, but ...
Matthias Schütt
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Mirror symmetries for brane configurations and branes at singularities [PDF]
Nuclear Physics B, 2000 We study local mirror symmetry on non-compact Calabi-Yau manifolds (conifold type of singularities) in the presence of D3 brane probes. Using an intermediate brane setup of NS 5-branes `probed' by D4 resp. D5 branes, we can explicitly T-dualize three isometry directions to relate a non-compact Calabi-Yau manifold to its local mirror.
Aganagic, Mina +3 more
openaire +3 more sources