Results 101 to 110 of about 1,619,181 (215)

Slant spacelike ruled surfaces and their Bertrand offsets

open access: yesFrontiers in Physics
In this work, we investigate the synthesis problem of slant spacelike ruled surfaces and associated Bertrand offsets (BO) in E13 (Minkowsk 3-space). We provide the parametric equation for a non-developable spacelike ruled surface (SLRS) by using the ...
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

Homothetic motions in Euclidean 3-space

open access: yesKuwait Journal of Science, 2014
A one-parameter homothetic motion of a rigid body in three-dimensional Euclidean space is defined by means of the Hamilton operators. We investigate some properties of this motion and show that it has only one pole point at every instant  Furthermore ...
MEHDI JAFARI
doaj  

Darboux Integrability For Polynomial Vector Fields Invariant Under Action of Finite Group

open access: yesQualitative Theory of Dynamical Systems, 2011
It is clear that a polynomial vector field of degree \(d\) in \(K^n\), with \(K \, = \, \mathbb{R}\) or \(K \, = \, \mathbb{C}\), admits a rational first integral if and only if it possesses an infinite number of invariant irreducible algebraic hypersurfaces. [\textit{J. P. Jouanolou}, Equations de Pfaff algébriques. Lecture Notes in Mathematics.
openaire   +3 more sources

Binary Darboux Transformations in Bidifferential Calculus and Integrable Reductions of Vacuum Einstein Equations

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We present a general solution-generating result within the bidifferential calculus approach to integrable partial differential and difference equations, based on a binary Darboux-type transformation.
Aristophanes Dimakis   +1 more
doaj   +1 more source

Direction Curves of Vectorial Moments with Respect to an Alternative Frame in Euclidean Space

open access: yesCommunications in Advanced Mathematical Sciences
This study introduces an alternative geometric framework for analyzing curves in three-dimensional Euclidean space. By constructing a set of alternative frame vectors and examining their corresponding derivative relations, a new perspective on the ...
Sıddıka Özkaldı Karakuş   +2 more
doaj   +1 more source

On Infinitesimal L_ω-smooth Functions.

open access: yesZanco Journal of Pure and Applied Sciences, 2022
The aim of this paper is to study smoothness, approximate continuity, and approximate derivative in a nonstandard manner with respect to infinitesimal parameters.
Ibrahim O. Hamad
doaj  

The rule for the number of fundamental Peregrine solitons involving multiple rogue wave states in the vector Chen-Lee-Liu nonlinear Schrödinger equation

open access: yesFrontiers in Physics
This study investigates the physical distribution patterns of Peregrine solitons within multi-order rogue wave states and their potential applications in optical systems under the vector Chen-Lee-Liu nonlinear Schrödinger equation framework.
Changchang Pan   +4 more
doaj   +1 more source

Superintegrable Oscillator and Kepler Systems on Spaces of Nonconstant Curvature via the Stäckel Transform

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
The Stäckel transform is applied to the geodesic motion on Euclidean space, through the harmonic oscillator and Kepler-Coloumb potentials, in order to obtain maximally superintegrable classical systems on N-dimensional Riemannian spaces of nonconstant ...
Ángel Ballesteros   +4 more
doaj   +1 more source

Akhmediev Breathers and Kuznetsov–Ma Solitons in the Cubic-Quintic Nonlinear Schrödinger Equation

open access: yesIEEE Photonics Journal
Finite background solitons are a significant area of research in nonlinear dynamics, as they are commonly found in various complex physical systems. Understanding how finite background solitons are generated and determining the conditions required for ...
Changchang Pan   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy