Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Torgašev, A."'
Autor:
Deszcz, Ryszard, Głogowska, Małgorzata, Jełowicki, Jan, Petrović-Torgašev, Miroslava, Zafindratafa, Georges
We determine pseudosymmetry type curvature conditions of some 2-quasi-Einstein manifolds (M,g), dim M > 3, with the Riemann-Christoffel curvature tensor R expresed by a linear combination of Kulkarni-Nomizu products formed by the metric tensor g, the
Externí odkaz:
http://arxiv.org/abs/2405.18865
A proposal is made for what may well be the most elementary Riemannian spaces which are homogeneous but not isotropic. In other words: a proposal is made for what may well be the nicest symmetric spaces beyond the real space forms, that is, beyond th
Externí odkaz:
http://arxiv.org/abs/2401.00472
Let M be a Wintgen ideal submanifold of dimension n in a real space form R^{n+m}(k) of dimension (n+m) and of constant curvature k, n > 3, m = 1 or m > 1. Let g, R, Ricc, g /\ Ricc and C be the metric tensor, the Riemann-Christoffel curvature tensor,
Externí odkaz:
http://arxiv.org/abs/2312.02386
Autor:
Deszcz, Ryszard, Głogowska, Małgorzata, Hotloś, Marian, Petrović-Torgašev, Miroslava, Zafindratafa, Georges
The difference tensor R.C-C.R of a semi-Riemannian manifold (M,g), dim M > 3, formed by its Riemannian-Christoffel curvature tensor R and the Weyl conformal curvature tensor C, under some assumptions, can be expressed as a linear combination of (0,6)
Externí odkaz:
http://arxiv.org/abs/2306.16518
Autor:
Deszcz, Ryszard, Głogowska, Małgorzata, Hotloś, Marian, Petrović-Torgašev, Miroslava, Zafindratafa, Georges
For any semi-Riemannian manifold (M,g) we define some generalized curvature tensor as a linear combination of Kulkarni-Nomizu products formed by the metric tensor, the Ricci tensor and its square of given manifold. That tensor is closely related to q
Externí odkaz:
http://arxiv.org/abs/2302.09387
Publikováno v:
Filomat, 2017 Jan 01. 31(7), 2163-2166.
Externí odkaz:
https://www.jstor.org/stable/26194952
Publikováno v:
International Electronic Journal of Geometry.
For any semi-Riemannian manifold (M, g) we define some generalized curvature tensor E as a linear combination of Kulkarni-Nomizu products formed by the metric tensor, the Ricci tensor and its square of given manifold. That tensor is closely related t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcb66d31ca35e22836efcd1c9972ef6e
https://doi.org/10.36890/iejg.1273631
https://doi.org/10.36890/iejg.1273631
Publikováno v:
Filomat, 2015 Jan 01. 29(3), 479-492.
Externí odkaz:
https://www.jstor.org/stable/24898129
Publikováno v:
Filomat, 2014 Jan 01. 28(4), 657-661.
Externí odkaz:
https://www.jstor.org/stable/24896807
Autor:
Djurčić, Dragan, Torgašev, Aleksandar
Publikováno v:
Filomat, 2001 Jan 01. 15, 215-220.
Externí odkaz:
https://www.jstor.org/stable/26453424