Results 41 to 50 of about 680 (80)

On the DDVV Conjecture and the Comass in Calibrated Geometry (I) [PDF]

open access: yesMath. Z., 260, pp. 409-429, 2008, 2006
In this paper, we proved a special case of the DDVV Conjecture.
arxiv  

Polyharmonic hypersurfaces into pseudo-Riemannian space forms. [PDF]

open access: yesAnn Mat Pura Appl, 2023
Branding V   +3 more
europepmc   +1 more source

A cubic identity for the Infeld-van der Waerden field and its application [PDF]

open access: yesarXiv, 2007
A cubic identity for the Infeld-van der Waerden field is found and its application to verifying an explicit formula for the spinor components of the metric connection is demonstrated.
arxiv  

A note on Kosmann-Lie derivatives of Weyl spinors [PDF]

open access: yesarXiv, 2008
Kosmann-Lie derivatives in the bundle of Weyl spinors are considered. It is shown that the basic spin-tensorial fields of this bundle are constants with respect to these derivatives.
arxiv  

On operator fields in the bundle of Dirac spinors [PDF]

open access: yesarXiv, 2008
Operator fields in the bundle of Dirac spinors and their conversion to spatial fields are considered. Some commutator equations are studied with the use of the conversion technique.
arxiv  

Lifts of Almost r-Contact and r-Paracontact Structures [PDF]

open access: yesarXiv, 2009
In this study, taking into considering lifting theory, we shall obtain both almost complex and paracomplex structures on the tangent bun- dle, based on almost Lorentzian r-contact and r-paracontact manifold.
arxiv  

Compact Osserman manifolds with neutral metric [PDF]

open access: yesarXiv, 2010
It is shown that if a compact four-dimensional manifold with metric of neutral signature is Jordan-Osserman, then it is either of constant sectional curvature or Ricci flat.
arxiv  

Some Characterizations for Curves by the Help Of Spherical Representations in the Galilean and Pseudo-Galilean Space [PDF]

open access: yesarXiv, 2011
In this paper, we focus on some characterizations for curves in the Galilean and Pseudo-Galilean space.
arxiv  

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