Results 21 to 30 of about 85,269 (245)
Is Cosmic Acceleration Really Recent? [PDF]
, 2002 In the standard cosmological paradigm cosmic acceleration is to only be a very recent (viz. $z \leq 1$) phenomenon, with the universe being required to be decelerating at all higher redshifts.
Mannheim, Philip D.
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On Mannheim curves in Riemann-Otsuki space
Boletim da Sociedade Paranaense de Matemática, 2011 In this paper, we studied the Mannheim partner curves and their new characterizations are also obtained in Riemann-Otsuki space.
Zühal Küçükarslan +1 more
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Клінічна хірургія, 2020 Objective. The investigation objective was improvement of the surgical treatment results in patients, suffering аbdominal sepsis, using individualized tactics of treatment, taking into account a possibility for the postoperative complications occurrence ...
I. A. Kryvoruchko +3 more
doaj +1 more source
On Mannheim partner curves in three dimensional Lie groups [PDF]
Miskolc Mathematical Notes, 2014 In this paper, we define Mannheim partner curves in a three dimensional Lie group G with a bi-invariant metric. And then the main result in this paper is given as (Theorem 3.3): A curve with the Frenet apparatus {T,N,B, , } in G is a Mannheim partner curve if and only if (1+H2)=1, where is constant and H is the harmonic curvature function ...
Okuyucu, O. Zeki +3 more
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Mannheim B-curve couples in Minkowski 3-space
Tamkang Journal of Mathematics, 2020 In this paper, we define null Cartan and pseudo null Mannheim curves in Minkowski 3-space according to their Bishop frames. We obtain the necessary and the sufficient conditions for pseudo null curves to be Mannheim B-curves in terms of their Bishop curvatures.
Ilarslan, Kazim +3 more
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Strong lensing as a test for Conformal Weyl Gravity [PDF]
, 2014 Conformal Weyl Gravity (CWG) predicts galactic rotation curves without invoking dark matter. This makes CWG an interesting candidate theory as an alternative to GR.
Adami, Kristian Zarb, Cutajar, Deandra
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Bertrand and Mannheim partner -curves on parallel surfaces
Boletim da Sociedade Paranaense de Matemática, 2017 In this paper we study Bertrand and Mannheim partner -curves on parallel surface. Using the definition of parallel surfaces, first we find images of two curves lying on two different surfaces and satisfying the conditions to be Bertrand partner -curve or Mannheim partner -curve. Then we obtain relationships between Bertrand and Mannheim partner -curves
Sezai Kızıltuğ +2 more
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A multiwavelength view of BL Lacs neutrino candidates [PDF]
, 2018 The discovery of high-energy astrophysical neutrinos by IceCube kicked off a new line of research to identify the electromagnetic counterparts producing these neutrinos.
Pacciani, L., Righi, C., Tavecchio, F.
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Smarandache Curves of Mannheim Curve Couple According to Frenet Frame
Mathematical Sciences and Applications E-Notes, 2017 p>In this paper, when the unit Darboux vector of the partner curve of Mannheimnbsp;curve are taken as the position vectors, the curvature and the torsion of Smarandache curvenbsp;are calculated. These values are expressed depending upon the Mannheim curve. Besides,nbsp;we illustrate example of our main results./p>
ŞENYURT, Süleyman +1 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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