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A Study of Clairaut Semi-Invariant Riemannian Maps from Cosymplectic Manifolds

open access: yesAxioms, 2022
In the present note, we characterize Clairaut semi-invariant Riemannian maps from cosymplectic manifolds to Riemannian manifolds. Moreover, we provide a nontrivial example of such a Riemannian map.
Yanlin Li   +4 more
doaj   +3 more sources

On warped product bi-slant submanifolds of Kenmotsu manifolds [PDF]

open access: yesArab Journal of Mathematical Sciences, 2021
Chen (2001) initiated the study of CR-warped product submanifolds in Kaehler manifolds and established a general inequality between an intrinsic invariant (the warping function) and an extrinsic invariant (second fundamental form).
Siraj Uddin, Ion Mihai, Adela Mihai
doaj   +1 more source

On the geometry of warped product submanifolds of a quasi-hemi Slant submanifold with trans para Sasakian [PDF]

open access: yesJournal of Hyperstructures, 2023
The existence or non-existence of warped product quasi-hemi slant submanifolds in trans para-sasakian manifolds is defined. Then we obtain that there are no proper warped product quasi-hemi slant submanifolds in trans para-sasakian manifolds such that ...
Sabi Ahmad, Niranjan Kumar Mishra
doaj   +1 more source

Types of Submanifolds in Metallic Riemannian Manifolds: A Short Survey

open access: yesMathematics, 2021
We provide a brief survey on the properties of submanifolds in metallic Riemannian manifolds. We focus on slant, semi-slant and hemi-slant submanifolds in metallic Riemannian manifolds and, in particular, on invariant, anti-invariant and semi-invariant ...
Cristina E. Hretcanu, Adara M. Blaga
doaj   +1 more source

Screen Semi-Invariant Lightlike Hypersurfaces on Hermite-Like Manifolds

open access: yesJournal of New Theory, 2023
Hermite-like manifolds, which admit two different, almost complex structures, can be considered a general concept of Hermitian manifolds. Factoring in the effects of these two complex structures on the radical, screen, and transversal spaces, a new ...
Ömer Aksu, Mehmet Gülbahar
doaj   +1 more source

Nonlinear Normal Modes in a Two-Stage Isolator Using a Modified Finite-Element Galerkin Method

open access: yesShock and Vibration, 2021
A modified Galerkin method is proposed to approximate the nonlinear normal modes in a new type of a two-stage isolator. Besides the displacement of payload and the force transmissibility of this typical nonlinear dynamic system, the nonlinear normal ...
Cheng Li, Hongguang Li
doaj   +1 more source

Integral invariants of {3}-manifolds [PDF]

open access: yesJournal of Differential Geometry, 1998
This note describes an invariant of rational homology 3-spheres in terms of configuration space integrals which in some sense lies between the invariants of Axelrod and Singer and those of Kontsevich.
Bott, Raoul, Cattaneo, Alberto S.
openaire   +5 more sources

Anti-Invariant Lorentzian Submersions From Lorentzian Concircular Structure Manifolds

open access: yesFrontiers in Physics, 2022
This research article attempts to investigate anti-invariant Lorentzian submersions and the Lagrangian Lorentzian submersions (LLS) from the Lorentzian concircular structure [in short (LCS)n] manifolds onto semi-Riemannian manifolds with relevant non ...
M. Danish Siddiqi   +3 more
doaj   +1 more source

Stable manifolds for non-instantaneous impulsive nonautonomous differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
In this paper, we study stable invariant manifolds for a class of nonautonomous non-instantaneous impulsive equations where the homogeneous part has a nonuniform exponential dichotomy.
Mengmeng Li, JinRong Wang, Donal O'Regan
doaj   +1 more source

Random Perturbation of Invariant Manifolds for Non-Autonomous Dynamical Systems

open access: yesMathematics, 2022
Random invariant manifolds are geometric objects useful for understanding dynamics near the random fixed point under stochastic influences. Under the framework of a dynamical system, we compared perturbed random non-autonomous partial differential ...
Tao Jiang, Zhongkai Guo, Xingjie Yan
doaj   +1 more source

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