Results 31 to 40 of about 4,398,040 (341)

Recovery problem for a singularly perturbed differential equation with an initial jump

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
The article investigates the asymptotic behavior of the solution to reconstructing the boundary conditions and the right-hand side for second-order differential equations with a small parameter at the highest derivative, which have an initial jump ...
D.N. Nurgabyl, S.S. Nazhim
doaj   +1 more source

Asymptotic Convergence of the Solution of a Singularly Perturbed Integro-Differential Boundary Value Problem

open access: yesMathematics, 2020
In this study, the asymptotic behavior of the solutions to a boundary value problem for a third-order linear integro-differential equation with a small parameter at the two higher derivatives has been examined, under the condition that the roots of the ...
Assiya Zhumanazarova, Young Im Cho
doaj   +1 more source

Muonium as a shallow center in GaN [PDF]

open access: yes, 2004
A paramagnetic muonium (Mu) state with an extremely small hyperfine parameter was observed for the first time in single-crystalline GaN below 25 K. It has a highly anisotropic hyperfine structure with axial symmetry along the [0001] direction, suggesting
A. F. Wright   +17 more
core   +3 more sources

Calculation of pipeline branches with considering nonlinearity of elastic base [PDF]

open access: yesE3S Web of Conferences, 2023
When calculating systems on an elastic foundation, the generalized Reissner-Vlasov-Filomenko-Borodich model is traditionally used. Such models are acceptable for small displacements. For large displacements, there are some deviations from reality.
Ostonov T. K.   +5 more
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

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

A small parameter approach for few-body problems

open access: yes, 2009
A procedure to solve few-body problems is developed which is based on an expansion over a small parameter. The parameter is the ratio of potential energy to kinetic energy for states having not small hyperspherical quantum numbers, K>K_0.
B. A. Fomin   +16 more
core   +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

Mean- Field Approximation and a Small Parameter in Turbulence Theory

open access: yes, 2000
Numerical and physical experiments on two-dimensional (2d) turbulence show that the differences of transverse components of velocity field are well described by a gaussian statistics and Kolmogorov scaling exponents.
A. M. Polyakov   +20 more
core   +1 more source

N=1 Supersymmetric Yang-Mills on the lattice at strong coupling [PDF]

open access: yes, 1999
We study N=1 supersymmetric SU(N) Yang-Mills theory on the lattice at strong coupling. Our method is based on the hopping parameter expansion in terms of random walks, resummed for any value of the Wilson parameter r in the small hopping parameter region.
Gabrielli, E.   +2 more
core   +2 more sources

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