Results 1 to 10 of about 6,114 (231)

Modeling small-angle scattering data of porous and/or bicontinuous structures in <i>n</i> dimensions. [PDF]

open access: yesJ Appl Crystallogr
A small‐angle scattering fitting function is derived for porous materials with arbitrary fractal dimension. It includes a correlation peak and a power law at higher q.Fractal structures are often observed in small‐angle scattering experiments where a simple power law q−α describes the scattering intensity over many orders of magnitude.
Frielinghaus H.
europepmc   +2 more sources

Ginzburg–Landau equations involving different effects and their solitary waves

open access: yesPartial Differential Equations in Applied Mathematics
Ginzburg–Landau (GL) equations describe a wide range of phenomena involving superconductivity, superfluidity, etc. In the present paper, Ginzburg–Landau equations involving distinct laws are considered, and as a consequence, their solitary waves in the ...
K. Hosseini   +5 more
doaj   +3 more sources

Homogenization of Attractors to Ginzburg-Landau Equations in Media with Locally Periodic Obstacles: Critical Case [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
In this paper the Ginzburg-Landau equation is considered in locally periodic porous medium, with rapidly oscillating terms in the equation and boundary conditions.
K.A. Bekmaganbetov   +3 more
doaj   +2 more sources

Investigation on Ginzburg-Landau equation via a tested approach to benchmark stochastic Davis-Skodje system

open access: yesAlexandria Engineering Journal, 2021
We propose new numerical methods with adding a modified ordinary differential equation solver to the Milstein methods for solution of stiff stochastic systems.
Kazem Nouri   +3 more
doaj   +1 more source

Solving Nonlinear Fractional Models in Superconductivity Using the q-Homotopy Analysis Transform Method

open access: yesJournal of Mathematics, 2023
The Ginzburg–Landau (GL) equation and the Ginzburg–Landau couple system are important models in the study of superconductivity and superfluidity. This study describes the q-homotopy analysis transform method (q-HATM) as a powerful technique for solving ...
Khalid K. Ali   +2 more
doaj   +1 more source

A Note on the Well-Posedness of Control Complex Ginzburg-Landau Equations in Zhidkov Spaces

open access: yesTrends in Computational and Applied Mathematics, 2022
In this note, we consider the Complex Ginzburg-Landau equations with a bilinear control term in the real line. We prove well-posedness results concerned with the initial value problem for these equations in Zhidkov spaces using Splitting methods.
A. Besteiro
doaj   +1 more source

THE GINZBURG–LANDAU EQUATION IN THE HEISENBERG GROUP [PDF]

open access: yesCommunications in Contemporary Mathematics, 2008
We consider a functional related with phase transition models in the Heisenberg group framework. We prove that level sets of local minimizers satisfy some density estimates, that is, they behave as "codimension one" sets. We thus deduce a uniform convergence property of these level sets to interfaces with minimal area.These results are then applied in ...
BIRINDELLI, Isabella, VALDINOCI E.
openaire   +5 more sources

Ginzburg–Landau equations and their generalizations

open access: yesIndagationes Mathematicae, 2023
The Ginzburg-Landau equations were proposed in the superconductivity theory to describe mathematically the intermediate state of superconductors in which the normal conductivity is mixed with the superconductivity. It was understood later on that these equations play an important role also in various problems of mathematical physics.
openaire   +3 more sources

Olbertian Partition Function in Scalar Field Theory

open access: yesFrontiers in Physics, 2020
The Olbertian partition function is reformulated in terms of continuous (Abelian) fields described by the Landau–Ginzburg action, respectively, Hamiltonian.
R. A. Treumann   +2 more
doaj   +1 more source

On a system of multi-component Ginzburg-Landau vortices

open access: yesAdvances in Nonlinear Analysis, 2023
We study the asymptotic behavior of solutions for nn-component Ginzburg-Landau equations as ε→0\varepsilon \to 0. We prove that the minimizers converge locally in any Ck{C}^{k}-norm to a solution of a system of generalized harmonic map equations.
Hadiji Rejeb, Han Jongmin, Sohn Juhee
doaj   +1 more source

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