Results 1 to 10 of about 1,205,198 (248)

Analytic vs. numerical solutions to a Sturm-Liouville transmission eigenproblem

open access: yesJournal of Numerical Analysis and Approximation Theory, 2019
An elliptic one-dimensional second order boundary value problem involving discontinuous coefficients, with or without transmission conditions, is considered.
Calin-Ioan Gheorghiu, Bertin Zinsou
doaj   +7 more sources

Efficacy of applying discontinuous boundary condition on the heat transfer and entropy generation through a slip microchannel equipped with nanofluid

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
In this study, the laminar nanofluid flow in the microchannel with a discontinuous-boundary condition was investigated. Considering the slip condition, heat transfer and entropy generation were studied.
Suhong Liu   +8 more
doaj   +1 more source

On Hill's equation with a discontinuous coefficient

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We research the asymptotic formula for the lengths of the instability intervals of the Hill's equation with coefficients q(x) and r(x), where q(x) is piecewise continuous and r(x) has a piecewise continuous second derivative in open intervals (0,b) and ...
Ilkay Yaslan Karaca
doaj   +1 more source

Effect of particle restitution coefficient on high-power gear transmission with dynamic continuum and non-continuum coupling

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
High-power gears are widely used in various engineering fields. A gear transmission system is an extremely complex elastic system that produces complex vibrations under internal and external excitation. In this study, the excitation value in the gear was
Wangqiang XIAO   +4 more
doaj   +1 more source

Study on the Nonlinear Dynamic Behavior of Rattling Vibration in Gear Systems

open access: yesMachines, 2022
To reveal the nonlinear dynamic behavior of gear rattling vibration caused by gear backlash, a 2-DOF oscillator model with spring and damping elements was established. Based on the theory of discontinuous dynamical systems, the phase plane of gear motion
Yang Liu   +4 more
doaj   +1 more source

A boundary value problem with a discontinuous coefficient and containing a spectral parameter in the boundary condition

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
A singular non-self-adjoint boundary value problem is considered. This problem has a discontinuous coefficient with a spectral parameter in the boundary condition. Some solutions of the eigenvalue equation are given.
A. A. Darwish
doaj   +1 more source

On Finite/Fixed-Time Stability Theorems of Discontinuous Differential Equations

open access: yesMathematics, 2022
We investigated the finite/fixed-time stability (FNTS/FXTS) of discontinuous differential equations (DDEs) in this paper. To cope with differential equations that were discontinuous on the right-hand side, we utilized the Filippov solution, which is ...
Luke Li, Dongshu Wang
doaj   +1 more source

On the convergence analysis of a time dependent elliptic equation with discontinuous coefficients

open access: yesAdvances in Nonlinear Analysis, 2019
In this paper, we consider a heat equation with diffusion coefficient that varies depending on the heterogeneity of the domain. We propose a spectral elements discretization of this problem with the mortar domain decomposition method on the space ...
Abdelwahed Mohamed, Chorfi Nejmeddine
doaj   +1 more source

A Half-Inverse Problem for Impulsive Dirac Operator with Discontinuous Coefficient

open access: yesAbstract and Applied Analysis, 2013
An inverse problem for Dirac differential operators with discontinuity conditions and discontinuous coefficient is studied. It is shown by Hochstadt and Lieberman's method that if the potential function in is prescribed over the interval , then a ...
Yalçın Güldü
doaj   +1 more source

Error estimates for an augmented method for one-dimensional elliptic interface problems

open access: yesAdvances in Difference Equations, 2018
Elliptic interface problems have many important scientific and engineering applications. Interface problems are encountered when the computational domain involves multi-materials with different conductivities, densities, or permeability.
Qian Zhang   +3 more
doaj   +1 more source

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