Results 11 to 20 of about 102,915 (146)

Internal boundary layer in a singularly perturbed problem of fractional derivative

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
This paper is devoted to the study of internal boundary layer. Such motions are often associated with effect of boundary layer, i.e. low flow viscosity affects only in a narrow parietal layer of a streamlined body, and outside this zone the flow is as ...
B.T. Kalimbetov   +2 more
doaj   +1 more source

Numerical Analysis of the Control Problem for a Queuing System with a Small Parameter on a Non-Uniform Grid Scheme

open access: yesСовременные информационные технологии и IT-образование, 2023
The shortest queue problem (SQP) is widely applied for load-balancing procedure in telecommunication systems. Now SQP is one of the most intensively studied and many investigators give full consideration to the SQP research for large-scale queueing ...
Shakhmurad Kanzitdinov   +3 more
doaj   +1 more source

How to Make the Physical Parameters Small [PDF]

open access: yesAdvances in High Energy Physics, 2020
We study the evolution of the physical parameter values defined at the sub-planckian energies to values at low energies. The Wilson action is the basis of the research. The presence of the compact extra dimensions has two consequences. The positive point is that the integration over extra dimensions is a promising way to substantially reduce the ...
openaire   +4 more sources

External Bootstrap Tests for Parameter stability [PDF]

open access: yes, 2002
This article considers tests for parameter stability over time in general econometric models, possibly nonlinear-in-variables. Existing test statistics are commonly not asymptotically pivotal under nonstandard conditions.
Delgado, Miguel A., Fiteni, Inmaculada
core   +1 more source

Trajectory attractors method for dissipative partial differential equations with small parameter [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this work is to study the limit behaviour of trajectory attractors for some equations and systems from mathematical physics depending on a small parameter when this small parameter approaches zero.
Chepyzhov, Vladimir Викторович
doaj   +1 more source

Asymptotic Approximation of the Stationary Solution with Internal Layer for FitzHugh–Nagumo System

open access: yesМоделирование и анализ информационных систем, 2016
Creating adequate mathematical models of processes in living nature is an important task of modern biophysics. Blood clotting, nerve impulse propagation, reduction of the heart muscle, the pattern-formation in nature are auto-wave processes.
A. A. Melnikova, R. L. Argun
doaj   +1 more source

Small-period long-period fiber grating with improved refractive index sensitivity and dual-parameter sensing ability [PDF]

open access: yes, 2017
We UV inscribe and characterize a long-period fiber grating with a period of 25 μm. A series of polarization-dependent dual-peak pairs can be seen in the transmission spectrum, even though only the symmetrical refractive index modification is introduced.
Sun, Zhongyuan   +5 more
core   +1 more source

Local Dynamics of a Second Order Equation with Large Exponentially Distributed Delay and Considerable Friction

open access: yesМоделирование и анализ информационных систем, 2015
We study local dynamics of a nonlinear second order differential equation with a large exponentially distributed delay in the vicinity of the zero solution under the condition γ>√ 2. The parameter γ can be interpreted as a friction coefficient.
D. V. Glazkov
doaj   +1 more source

Asymptotic behavior of the solution of the integral boundary value problem for singularly perturbed integro-differential equations

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2021
The work is devoted to clarifying asymptotic with respect to a small parameter behavior of the solution of the integral boundary value problem for singularly perturbed linear integro-differential equation.
N. Aviltay, M. Akhmet
doaj   +1 more source

Small t elastic scattering and the ρ parameter

open access: yesPhysics Letters B, 2019
3 pages + 8 ...
Donnachie, A., Landshoff, P.V.
openaire   +3 more sources

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