Results 1 to 10 of about 145 (132)

δ(2,2)-Invariant for Lagrangian Submanifolds in Quaternionic Space Forms [PDF]

open access: yesMathematics, 2020
In the geometry of submanifolds, Chen inequalities represent one of the most important tool to find relationships between intrinsic and extrinsic invariants; the aim is to find sharp such inequalities. In this paper we establish an optimal inequality for
Gabriel Macsim, Adela Mihai, Ion Mihai
doaj   +2 more sources

IMPROVED CHEN’S INEQUALITIES FOR LAGRANGIAN SUBMANIFOLDS IN QUATERNIONIC SPACE FORMS [PDF]

open access: yesRomanian Journal of Mathematics and Computer Science, 2016
Riemannian invariants (in particular Chen invariants) play an important role in the theory of submanifolds. They are very useful in providing relationships between the extrinsic and intrinsic invariants of a submanifold.
GABRIEL MACSIM
doaj   +1 more source

Quantum deformations of D=4 Euclidean, Lorentz, Kleinian and quaternionic o⋆(4) symmetries in unified o(4;C) setting

open access: yesPhysics Letters B, 2016
We employ new calculational technique and present complete list of classical r-matrices for D=4 complex homogeneous orthogonal Lie algebra o(4;C), the rotational symmetry of four-dimensional complex space–time.
A. Borowiec, J. Lukierski, V.N. Tolstoy
doaj   +1 more source

An Inequality on Quaternionic CR-Submanifolds

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
We establish an inequality for an intrinsic invariant of Chen-type defined on quaternionic CR-submanifolds in quaternionic space forms, in terms of the squared mean curvature, the main extrinsic invariant, by using the method of constrained extrema.
Macsim Gabriel, Mihai Adela
doaj   +1 more source

Basic quantizations of D = 4 Euclidean, Lorentz, Kleinian and quaternionic o⋆4 $$ {\mathfrak{o}}^{\star }(4) $$ symmetries

open access: yesJournal of High Energy Physics, 2017
We construct firstly the complete list of five quantum deformations of D = 4 complex homogeneous orthogonal Lie algebra o4ℂ≅o3ℂ⊕o3ℂ $$ \mathfrak{o}\left(4;\mathbb{C}\right)\cong \mathfrak{o}\left(3;\mathbb{C}\right)\oplus \mathfrak{o}\left(3;\mathbb{C ...
A. Borowiec, J. Lukierski, V.N. Tolstoy
doaj   +1 more source

Addendum to “Quantum deformations of D=4 Euclidean, Lorentz, Kleinian and quaternionic o⋆(4) symmetries in unified o(4;C) setting” [Phys. Lett. B 754 (2016) 176–181]

open access: yesPhysics Letters B, 2017
In our previous paper [1] we obtained a full classification of nonequivalent quasitriangular quantum deformations for the complex D=4 Euclidean Lie symmetry o(4;C).
Andrzej Borowiec   +2 more
doaj   +1 more source

DDVV Inequality on Submanifolds Coupled with a Slant Factor in Quaternionic Kaehler Manifolds

open access: yesAxioms
This work aims to provide generalized Wintgen inequalities for slant submanifolds embedded in quaternionic space forms, taking into consideration both semi-symmetric metric and semi-symmetric non-metric connections.
Rawan Bossly   +4 more
doaj   +1 more source

Chen-Type Inequality for Generic Submanifolds of Quaternionic Space Form and Its Application

open access: yesJournal of New Theory
In 1993, the theory of Chen invariants started when Chen wrote basic inequalities for submanifolds in space forms. This inequality is called Chen’s first inequality. Afterward, many geometers studied many papers dealing with this new inequality.
Amine Yılmaz
doaj   +1 more source

Quadratic Killing tensors on symmetric spaces which are not generated by Killing vector fields

open access: yesComptes Rendus. Mathématique
Every Killing tensor field on the space of constant curvature and on the complex projective space can be decomposed into the sum of symmetric tensor products of Killing vector fields (equivalently, every polynomial in velocities integral of the geodesic ...
Matveev, Vladimir S., Nikolayevsky, Yuri
doaj   +1 more source

Curvature Pinching Conditions in Quaternionic Manifolds Under Quarter-Symmetric Metric Connections

open access: yesAxioms
This work presents a pair of sharp geometric inequalities that connect the normalized scalar curvature with the generalized normalized δ-Casorati curvature for θ-slant submanifolds immersed in quaternionic space forms endowed with a quarter-symmetric ...
Md Aquib, Ibrahim Al-Dayel
doaj   +1 more source

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