Results 11 to 20 of about 446 (130)

Improved Analysis for Squeezing of Newtonian Material between Two Circular Plates

open access: yesAdvances in Materials Science and Engineering, 2017
This article presents a scheme for the analysis of an unsteady axisymmetric flow of incompressible Newtonian material in the form of liquid squeezed between two circular plates.
Omar Khan   +3 more
doaj   +1 more source

Homotopy Regularization for a High-Order Parabolic Equation [PDF]

open access: yesMediterranean Journal of Mathematics, 2019
In this work we study the solvability of the Cauchy Problem for a quasilinear degenerate high-order parabolic equation \begin{equation*} \left\{ \begin{tabular}{lcl} $u_t=(-1)^{m-1}\nabla\cdot(f^n(|u|)\nabla ^{m-1}u)$ & &in $\mathbb{R}^N\times\mathbb{R}_+$, $u(x,0)=u_0(x)$& & in $\mathbb{R}^N$, \end{tabular} \right.
P. Álvarez-Caudevilla, A. Ortega
openaire   +4 more sources

On the Singular Perturbations for Fractional Differential Equation

open access: yesThe Scientific World Journal, 2014
The goal of this paper is to examine the possible extension of the singular perturbation differential equation to the concept of fractional order derivative. To achieve this, we presented a review of the concept of fractional calculus. We make use of the
Abdon Atangana
doaj   +1 more source

Positive Legendrian regular homotopies [PDF]

open access: yes, 2009
In contrast with what happens for Legendrian embeddings, there always exist positive loops of Legendrian immersions.
openaire   +3 more sources

On Diff(M)-Pseudo-Differential Operators and the Geometry of Non Linear Grassmannians

open access: yesMathematics, 2015
We consider two principal bundles of embeddings with total space E m b ( M , N ) ,
Jean-Pierre Magnot
doaj   +1 more source

Regular homotopy classes of singular maps [PDF]

open access: yesProceedings of the London Mathematical Society, 2005
23 pages, 3 ...
openaire   +2 more sources

The homotopy sequence for regular singular stratified bundles [PDF]

open access: yesANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, 2019
17 ...
Battiston, Giulia, Kindler, Lars
openaire   +2 more sources

Regularity results for real analytic homotopies

open access: yesNumerische Mathematik, 1985
This paper deals with properties of homotopies for finding roots of smooth mappings from \(R^ n\) to \(R^ n\). The homotopy considered is of the form: \(\Phi_ a(x,\lambda)=(1-\lambda)(x-a)+\lambda f(x)\), where x is a n-vector, f(x) is an n-vector and f is analytic in the real sense, and points \(x_ 0\) with \(f(x_ 0)=0\) are desired.
Li, T.-Y., Mallet-Paret, J., Yorke, J.A.
openaire   +1 more source

Bordism and regular homotopy of low-dimensional immersions [PDF]

open access: yesPacific Journal of Mathematics, 1992
To obtain explicit generators for the groups of regular homotopy classes of immersions of the \(k\)-sphere in \(\mathbb{R}^ n\), the author defines an immersion invariant as an element of the \(k\)-th homotopy group of a Stiefel manifold. Using this invariant, he obtains generators for some groups of low-dimensional immersions.
openaire   +2 more sources

Pendulum attached to a vibrating point: Semi-analytical solution by optimal and modified homotopy perturbation method

open access: yesAlexandria Engineering Journal
A simple pendulum of length (b) and bob mass (m) attached to point (O) is considered and investigated. The point (O) is oscillating vertically according to the relation (qocosΩt), where qo and Ωare amplitude and angular frequency of the external agent ...
Tapas Roy   +4 more
doaj   +1 more source

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