Results 51 to 60 of about 14,865,566 (335)
A review of complex vector light fields and their applications
Journal of Optics, 2018 Vector beams, and in particular vector vortex beams, have found many applications in recent times, both as classical fields and as quantum states.
C. Rosales-Guzmán +2 more
semanticscholar +1 more source
Singular Higher-Order Complete Vector Bases for Finite Methods [PDF]
, 2004 This paper presents new singular curl- and divergence- conforming vector bases that incorporate the edge conditions. Singular bases complete to arbitrarily high order are described in a unified and consistent manner for curved triangular and ...
Graglia, Roberto, Lombardi, Guido
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On tensor fields semiconjugated with torse-forming vector fields [PDF]
, 2005 summary:The paper deals with tensor fields which are semiconjugated with torse-forming vector fields.
Mikeš, Josef, Rachůnek, Lukáš
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On generic homogeneous vector fields
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022 Background. The study of dynamical systems with symmetry is of both theoretical and applied interest. Phase portraits of dynamical systems defined by homogeneous vector fields are invariant with respect to the phase space dilation group.
V.Sh. Roytenberg
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Averaged energy conditions for vector fields
Physics Letters B, 2023 In this work we shall obtain sufficient conditions for the appearance of singularities in gravitational theories which propagate an extra vector degree of freedom, based on the known relaxations of the singularity theorems.
Francisco José Maldonado Torralba
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A uniqueness result for the continuity equation in two dimensions [PDF]
, 2014 We characterize the autonomous, divergence-free vector fields $b$ on the plane such that the Cauchy problem for the continuity equation $\partial_t u + div(bu) = 0$ admits a unique bounded solution (in the weak sense) for every bounded initial datum; the
Crippa, Gianluca +8 more
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A vector field approach to calculating gravitational forces
New Journal of Physics, 2017 Calculation of gravitational forces is essential for many fundamental measurements, such as determining the gravitational constant or investigating violations of the inverse square law.
Julian Stirling
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Construction of vector field hierarchies [PDF]
Proceedings Visualization '99 (Cat. No.99CB37067), 1999 Presents a method for the hierarchical representation of vector fields. Our approach is based on iterative refinement using clustering and principal component analysis. The input to our algorithm is a discrete set of points with associated vectors. The algorithm generates a top-down segmentation of the discrete field by splitting clusters of points. We
Bjørn Heckel +3 more
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Classical observer form for discrete-time nonlinear system: MIMO case [PDF]
Proceedings of the Estonian Academy of SciencesThe paper addresses the problem of transforming multi-input multi-output discrete-time nonlinear state equations into the classical observer form using state transformation.
Arvo Kaldmäe +4 more
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Vector fields on polyhedra [PDF]
Transactions of the American Mathematical Society, 1977 This paper presents a bundle theory for studying vector fields and their integral flows on polyhedra ∗
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