Results 31 to 40 of about 61,569 (245)
No Null-Helix Mannheim Curves in the Minkowski Space E13
International Journal of Mathematics and Mathematical Sciences, 2011 We study a null Mannheim curve with time-like or space-like Mannheim partner curve in the Minkowski 3-space E13. We get the characterization of a null Mannheim curve.
Jae Won Lee
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Linear Potentials in Galaxy Halos by Asymmetric Wormholes
Universe, 2018 A spherically symmetric space-time solution for a diffusive two measures theory is studied. An asymmetric wormhole geometry is obtained where the metric coefficients has a linear term for galactic distances and the analysis of Mannheim and collaborators,
Sebastian Bahamonde +2 more
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Mannheim curves with modified orthogonal frame in Euclidean 3-space
, 2018 In this paper, we investigate Mannheim pairs, Frenet-Mannheim curves and Weakened Mannheim curves with respect to the modified orthogonal frame in Euclidean 3-space(E 3 ).
Bukcu, Bahaddin +3 more
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Linear Potentials and Galactic Rotation Curves - Representative Fitting
, 1992 We present a simple, closed form expression for the potential of an axisymmetric disk of stars interacting through gravitational potentials of the form $V(r)=-\beta /r+\gamma r/2$, the potential associated with fundamental sources in the conformal ...
Mannheim, Philip D.
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Non-Null Weakened Mannheim curves
, 2012 In this study, non-null Frenet-Mannheim curves and non-null Weakened Mannheim curves are investigated in Minkowski 3-space. Some characterizations for this curves are obtained.
Tunçer, Yılmaz, Karacan, Murat Kemal
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Alternative gravity rotation curves for the Little Things Survey
, 2017 Galactic rotation curves have proven to be the testing ground for dark matter bounds in spiral galaxies of all morphologies. Dwarf galaxies serve as an increasingly interesting case of rotation curve dynamics due to their typically rising rotation curve ...
Chaykov, Spasen +6 more
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Simulation training in vitreoretinal surgery: a systematic review
BMC Ophthalmology, 2019 Background The purpose of this study was to perform a systematic review of the current literature on simulator-based training in vitreoretinal surgery (VRS).
Rasmus Christian Rasmussen +2 more
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Generalized Timelike Mannheim Curves in Minkowski Space‐Time E14 [PDF]
Mathematical Problems in Engineering, 2011 We give the definition of generalized timelike Mannheim curve in Minkowski space‐time . The necessary and sufficient conditions for the generalized timelike Mannheim curve are obtained. We show some characterizations of generalized Mannheim curve.
Özgür, İbrahim +3 more
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Conformal gravity: light deflection revisited and the galactic rotation curve failure
, 2019 We show how Conformal Gravity (CG) has to satisfy a fine-tuning condition to describe the rotation curves of disk galaxies without the aid of dark matter.
Campigotto, M. C. +2 more
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Generalized Mannheim quaternionic curves in Euclidean 4-space
Applied Mathematical Sciences, 2013 In this paper, we define a generalized Mannheim quaternionic curve in the four-dimensional Euclidean space R 4 and investigate the properties of it.
Yoon D.W. +2 more
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