Results 1 to 10 of about 50 (40)

Almost Pure Metric Plastic Structures and Ricci Solitons on Four-Dimensional Pseudo-Riemannian Manifolds

open access: yesJournal of Function Spaces
This paper investigates four-dimensional almost pure metric plastic manifolds equipped with a specific class of tensor fields known as almost plastic structures.
Aydin Gezer, Sedanur Ucan, Cagri Karaman
doaj   +2 more sources

AFFINOR METRIC STRUCTURES AND THEIR PHYSICAL APPLICATIONS [PDF]

open access: yesScience Evolution, 2016
This work describes the fundamentals of the mathematical theory of affinor metric structures and physical problems where these structures are used. Affinor metric structure is defined as an arbitrary 1-form having a radical of arbitrary rank, a certain Riemannian metric and a special field of automorphisms of tangent spaces connecting the exterior ...
Evgeniy Kornev, Evgeniy Kornev
exaly   +2 more sources

Invariant affinor and sub-Kähler structures on homogeneous spaces

open access: yesSiberian Mathematical Journal, 2016
The authors consider \(G\)-invariant affinor metric structures and their particular cases, sub-Kähler structures, on a homogeneous space \(G/H\). The affine metric structures generalize almost Kähler and almost contact metric structures to manifolds of arbitrary dimension. They study invariant sub-Riemannian and sub-Kähler structures related to a fixed
Kornev, E. S., Slavolyubova, Ya. V.
exaly   +3 more sources

Canonical quasi-geodesic mappings of special pseudo-Riemannian spaces

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2022
The present paper continues the study of quasi-geodesic mappings f:(Vn, gij, Fih) → (V'n,g'ij, Fih) of pseudo-Riemannian spaces Vn, V'n with a generalized-recurrent structure Fih of parabolic type.
Irina Kurbatova, M. Pistruil
doaj   +1 more source

On quasi-geodesic mappings of special pseudo-Riemannian spaces

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2022
The present paper continues the study of quasi-geodesic mappings f:(Vn, gij, Fih) → (V'n,g'ij, Fih) of pseudo-Riemannian spaces Vn, V'n with a generalized-recurrent structure Fih of parabolic type.
Irina Kurbatova, M. Pistruil
doaj   +1 more source

Harmonic Subtangent Structures

open access: yesJournal of Mathematics, Volume 2014, Issue 1, 2014., 2014
The concept of harmonic subtangent structures on almost subtangent metric manifolds is introduced and a Bochner‐type formula is proved for this case. Conditions for a subtangent harmonic structure to be preserved by harmonic maps are also given.
Adara M. Blaga, Bibhas R. Majhi
wiley   +1 more source

Invariant f‐structures on the flag manifolds SO(n)/SO(2) × SO(n − 3)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2006, Issue 1, 2006., 2006
We consider manifolds of oriented flags SO(n)/SO(2) × SO(n − 3)(n ≥ 4) as 4‐ and 6‐symmetric spaces and indicate characteristic conditions for invariant Riemannian metrics under which the canonical f‐structures on these homogeneous Φ‐spaces belong to the classes Kill f, NKf, and G1f of generalized Hermitian geometry.
Vitaly V. Balashchenko, Anna Sakovich
wiley   +1 more source

Pseudoinversion of degenerate metrics

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 55, Page 3479-3501, 2003., 2003
Let (M, g) be a smooth manifold M endowed with a metric g. A large class of differential operators in differential geometry is intrinsically defined by means of the dual metric g∗ on the dual bundle TM∗ of 1‐forms on M. If the metric g is (semi)‐Riemannian, the metric g∗ is just the inverse of g. This paper studies the definition of the above‐mentioned
C. Atindogbe, J.-P. Ezin, Joël Tossa
wiley   +1 more source

Compatible flat metrics

open access: yesJournal of Applied Mathematics, Volume 2, Issue 7, Page 337-370, 2002., 2002
We solve the problem of description of nonsingular pairs of compatible flat metrics for the general N‐component case. The integrable nonlinear partial differential equations describing all nonsingular pairs of compatible flat metrics (or, in other words, nonsingular flat pencils of metrics) are found and integrated.
Oleg I. Mokhov
wiley   +1 more source

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