Results 151 to 160 of about 2,400,148 (182)
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On the Cartan Curvatures of a Null Curve in Minkowski Spacetime
Geometriae Dedicata, 2005The authors reconstruct the Cartan frame of a null curve in Minkowski space-time for an arbitrary parameter, and they characterize pseudo-spherical null curves and Bertrand null curves.
Ünver Çiftçi
exaly +4 more sources
Null curves in diffraction patterns
Applied Optics, 1977We show that there is a large class of plane curves which never appear in partial form, as curves along which destructive interference takes place. These curves have an analytic property which, when combined with an analytic property of the free light field, gives rise to patterns of interference that are commonly observed.
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On the Null Distribution of the Precision and Recall Curve
2014Precision recall curves (pr-curves) and the associated area under (AUPRC) are commonly used to assess the accuracy of information retrieval (IR) algorithms. An informative baseline is random selection. The associated probability distribution makes it possible to assess pr-curve significancy (as a p-value relative to the null of random).
Miguel Lopes, Gianluca Bontempi
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Differential Equations of Null Quaternionic Curves
International Journal of Applied and Computational Mathematics, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Construction of generalized null cartan curves using spacelike curves on null plane
Modern Physics Letters AIn this paper, we provide an effective tool for studying spacelike curves on null planes in mathematical and physical research. As an application, we propose a unified method for constructing generalized null Cartan curves.
Boyuan Xu, Xiaoyan Jiang, Donghe Pei
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Null Quaternionic Bertrand Partner Curves
Iranian Journal of Science and Technology, Transactions A: Science, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Hamiltonian structure for null curve evolution
Nonlinearity, 2014We construct a Hamiltonian structure for null curve motions in a threedimensional Minkowski space. In order to define such a structure, a Lie algebra structure on variation vector fields along null curves is provided. Finally, we propose a new Hamiltonian evolution equation on null curves and the integrability of such equation is proved via a suitable ...
José del Amor +2 more
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Geometry of Null Curves in Lorentz Manifolds
1996The purpose of this chapter is to present the basic results on the general study of null curves in Lorentz manifolds. The reader will know at the end of this chapter as to why the discussion is restricted to Lorentz manifolds.
Krishan L. Duggal, Aurel Bejancu
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Null eğrilerin uygulamaları üzerine = On applications of null curves / [PDF]
Tez (Yüksek Lisans) - Süleyman Demirel Üniversitesi, Fen Bilimleri Enstitüsü, Matematik Anabilim Dalı, 2016.
Olgun, Başaran, 1980- 144988 author +2 more
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Null bertrand eğriler üzerine = On null bertrand curves / [PDF]
Kaynakça var.
Babaarslan, Murat, 1983- author 15267 +2 more
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