Results 31 to 40 of about 4,956,636 (266)

A public code for astrometric microlensing with contour integration [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
We present the first public code for the calculation of the astrometric centroid shift occurring during microlensing events. The computation is based on the contour integration scheme and covers single and binary lensing of finite sources with ...
V. Bozza, E. Khalouei, É. Bachelet
semanticscholar   +1 more source

Numerical Contour Integration

open access: yesThe Mathematica Journal, 2021
We present a straightforward implementation of contour integration by setting options for Integrate and NIntegrate, taking advantage of powerful results in complex analysis.
Erickson Tjoa
semanticscholar   +1 more source

Resultants and contour integrals [PDF]

open access: yesFunctional Analysis and Its Applications, 2012
9 ...
Morozov, A., Shakirov, Sh.
openaire   +2 more sources

Contour Integration for Eigenvector Nonlinearities

open access: yesSIAM Journal on Matrix Analysis and Applications, 2023
24 pages, 6 ...
Claes, Rob   +2 more
openaire   +2 more sources

Instability of Vibrations of Mass(es) Moving Uniformly on a Two-Layer Track Model: Parameters Leading to Irregular Cases and Associated Implications for Railway Design

open access: yesApplied Sciences, 2023
Ballasted railway tracks can be modeled using reduced/simplified models composed of several layers of discrete components. This paper deals with the two-layer model, which is very popular due to its computational efficiency.
Zuzana Dimitrovová
doaj   +1 more source

The Analysis of Contour Integrals [PDF]

open access: yesAbstract and Applied Analysis, 2008
For any n, the contour integral s2 = −λ, is associated with differential equation d2y(x)/dx2 + (λ + n(n + 1)/cosh2x)y(x) = 0. Explicit solutions for n = 1 are obtained. For n = 1, eigenvalues, eigenfunctions, spectral function, and eigenfunction expansions are explored.
Tanriverdi, Tanfer, Mcleod, JohnBryce
openaire   +3 more sources

Numerical contour integration for loop integrals [PDF]

open access: yesComputer Physics Communications, 2006
A fully numerical method to calculate loop integrals, a numerical contour-integration method, is proposed. Loop integrals can be interpreted as a contour integral in a complex plane for an integrand with multi-poles in the plane. Stable and efficient numerical integrations an along appropriate contour can be performed for tensor integrals as well as ...
Yoshimi Kurihara, Toyohisa Kaneko
openaire   +3 more sources

On the Critical Velocity of Moving Force and Instability of Moving Mass in Layered Railway Track Models by Semianalytical Approaches

open access: yesVibration, 2023
This article presents a comparison between layered models of a railway track. All analyses are based on semianalytical approaches to show how powerful they can be.
Zuzana Dimitrovová
doaj   +1 more source

Collinear facilitation and contour integration in autistic adults: Examining lateral and feedback connectivity.

open access: yesVision Research, 2020
Alongside difficulties with communication and social interaction, autism is often accompanied by unusual sensory and perceptual experiences including enhanced visual performance on tasks that involve separating local parts from global context.
E. Gowen   +4 more
semanticscholar   +1 more source

A Meshless Method Based on the Laplace Transform for the 2D Multi-Term Time Fractional Partial Integro-Differential Equation

open access: yesMathematics, 2020
In this article, we propose a localized transform based meshless method for approximating the solution of the 2D multi-term partial integro-differential equation involving the time fractional derivative in Caputo’s sense with a weakly singular kernel ...
Kamran Kamran   +3 more
doaj   +1 more source

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