General Solution of the Inhomogeneous Div-Curl System and Consequences
Sign Up to like & getrecommendations! Published in 2017 at "Advances in Applied Clifford Algebras"
DOI: 10.1007/s00006-017-0805-z
Abstract: We consider the inhomogeneous div-curl system (i.e. to find a vector field with prescribed div and curl) in a bounded star-shaped domain in $$\mathbb {R}^3$$R3. An explicit general solution is given in terms of classical… read more here.
Keywords: general solution; curl system; div curl; solution ... See more keywords
Generalized Emden–Fowler equations in noncentral curl forces and first integrals
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DOI: 10.1007/s00707-019-02602-9
Abstract: Noncentral force is an exemplary example of curl force and in general this is not an integrable system. The purpose of this note is twofold. First, we study a different reduction in the noncentral force… read more here.
Keywords: fowler; first integrals; generalized emden; fowler equations ... See more keywords
Equivalence of local-best and global-best approximations in H(curl)
Sign Up to like & getrecommendations! Published in 2021 at "Calcolo"
DOI: 10.1007/s10092-021-00430-9
Abstract: We derive results on equivalence of piecewise polynomial approximations of a given function in the Sobolev space H(curl). We namely show that the global-best approximation of a given H(curl) function in a H(curl)-conforming piecewise polynomial… read more here.
Keywords: equivalence local; local best; approximations curl; function ... See more keywords
Finite Element Approximation of the Spectrum of the Curl Operator in a Multiply Connected Domain
Sign Up to like & getrecommendations! Published in 2018 at "Foundations of Computational Mathematics"
DOI: 10.1007/s10208-018-9373-4
Abstract: In this paper we are concerned with two topics: the formulation and analysis of the eigenvalue problem for the $$\mathop {\mathbf {curl}}\nolimits $$curl operator in a multiply connected domain and its numerical approximation by means… read more here.
Keywords: connected domain; operator multiply; multiply connected; curl operator ... See more keywords
Compatibility and interaction of begomoviruses and DNA-satellites causing leaf curl disease in Asia, Africa and Mediterranean Region
Sign Up to like & getrecommendations! Published in 2019 at "European Journal of Plant Pathology"
DOI: 10.1007/s10658-019-01753-8
Abstract: A complex of begomoviruses and their associated DNA-satellites is causing leaf curl diseases in Asia, Africa and the Mediterranean Region. Begomoviruses and DNA-satellites native to Asia and Africa are distinct from each other. Different combinations… read more here.
Keywords: dna satellites; leaf curl; mediterranean region; asia africa ... See more keywords
Identification of pedilanthus leaf curl virus and associated betasatellite infecting turnip in Pakistan
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Plant Pathology"
DOI: 10.1007/s42161-018-0079-x
Abstract: Complete begomovirus and betasatellite genomes were isolated from turnip (Brassica rapa) plants exhibiting leaf crumpling symptoms in Pakistan. In this study, two complete begomovirus genomes and one betasatellite molecule were cloned, sequenced and characterized. The… read more here.
Keywords: leaf curl; turnip pakistan; curl; pedilanthus leaf ... See more keywords
Characterization of recombinant tomato leaf curl Palampur virus causing leaf curl disease of Basella alba L. in India
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Plant Pathology"
DOI: 10.1007/s42161-019-00464-7
Abstract: Malabar spinach (Basella alba L.), a leafy vegetable native to the Asian and African continents, was observed with rosetting and curling of leaves associated with begomovirus infection. PCR assay involving the universal begomovirus specific primer… read more here.
Keywords: tomato leaf; leaf curl; basella; curl disease ... See more keywords
Generalized div-curl based regularization for physically constrained deformable image registration
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-024-65896-3
Abstract: Variational image registration methods commonly employ a similarity metric and a regularization term that renders the minimization problem well-posed. However, many frequently used regularizations such as smoothness or curvature do not necessarily reflect the underlying… read more here.
Keywords: image registration; generalized div; div curl; curl ... See more keywords
Stickiness in double-curl Beltrami magnetic fields.
Sign Up to like & getrecommendations! Published in 2018 at "Chaos"
DOI: 10.1063/1.5053859
Abstract: The double-curl Beltrami magnetic field in the presence of a uniform mean field is considered for investigating the nonlinear dynamical behavior of magnetic field lines. The solutions of the double-curl Beltrami equation being non-force-free in… read more here.
Keywords: magnetic fields; beltrami magnetic; curl beltrami; field ... See more keywords
Finite volume discretization of curl-curl operator to compute magnetic field in low frequency approximation
Sign Up to like & getrecommendations! Published in 2025 at "COMPEL - The international journal for computation and mathematics in electrical and electronic engineering"
DOI: 10.1108/compel-10-2024-0429
Abstract: The most used numerical method in electrical engineering resources is the finite element method (FEM). This paper aims to present the use of the finite volume method to solve differential systems that contain the curl-curl… read more here.
Keywords: curl curl; curl operator; finite volume; approximation ... See more keywords
Seg-CURL: Segmented Contrastive Unsupervised Reinforcement Learning for Sim-to-Real in Visual Robotic Manipulation
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3278208
Abstract: Training image-based reinforcement learning (RL) agents are sample-inefficient, limiting their effectiveness in real-world manipulation tasks. Sim2Real, which involves training in simulations and transferring to the real world, effectively reduces the dependence on real data. However,… read more here.
Keywords: reinforcement learning; seg curl; curl; contrastive unsupervised ... See more keywords