Results 11 to 20 of about 31,508 (275)

Laplace–Fourier Transform of the Stretched Exponential Function: Analytic Error Bounds, Double Exponential Transform, and Open-Source Implementation “libkww” [PDF]

Algorithms, 2012
The C library libkww provides functions to compute the Kohlrausch–Williams– Watts function, i.e., the Laplace–Fourier transform of the stretched (or compressed) exponential function exp(-tβ ) for exponents β between 0.1 and 1.9 with double precision. Analytic error bounds are derived for the low and high frequency series expansions.
Wuttke, Joachim, Joachim Wuttke
openaire   +6 more sources

Computation of 3D Water Flows by the Double Potential Method for the Simulation of Electromagnetic Water Purification [PDF]

EPJ Web of Conferences, 2020
In this paper, we discuss the modeling of the electromagnetic water purification. This model requires a velocity distribution in a study domain. For that purpose, the double potential method for simulating incompressible viscous fluid flows was used. The
Tarasov Nikita, Polyakov Sergey, Kudryashova Tatiana   +2 more
doaj   +2 more sources

Pricing of a Binary Option Under a Mixed Exponential Jump Diffusion Model

Mathematics
This paper focuses on the pricing problem of binary options under stochastic interest rates, stochastic volatility, and a mixed exponential jump diffusion model.
Yichen Lu, Ruili Song
doaj   +2 more sources

Multiwave and interaction solutions and Lie symmetry analysis to a new (2 + 1)-dimensional Sakovich equation

Alexandria Engineering Journal, 2020
In this study, we construct multi wave solutions for the (2 + 1)-dimensional Sakovich equation by utilizing the logarithmic transformation of the dependent variables and symbolic computation with the ansatz function technique.
Yeşim Sağlam Özkan, Emrullah Yaşar
doaj   +2 more sources

The Transformation of Enterovirus Replication Structures: a Three-Dimensional Study of Single- and Double-Membrane Compartments

mBio, 2011
All positive-strand RNA viruses induce membrane structures in their host cells which are thought to serve as suitable microenvironments for viral RNA synthesis. The structures induced by enteroviruses, which are members of the family Picornaviridae, have
Ronald W. A. L. Limpens, Hilde M. van der Schaar, Darshan Kumar, Abraham J. Koster, Eric J. Snijder, Frank J. M. van Kuppeveld, Montserrat Bárcena   +6 more
doaj   +2 more sources

New Applications and Improvements of Sinc Functions for Solving a System of Fredholm Integral Equations

Axioms
This study introduces two novel methodologies for solving systems of Fredholm integral equations, with particular emphasis on second-kind equations. The first method integrates the Sinc-collocation technique with a newly developed singular exponential ...
Saeed Althubiti, Abdelaziz Mennouni
doaj   +2 more sources

IS THE BOX-COX TRANSFORMATION NEEDED IN MODELING TELKOM’S STOCK PRICE USING NNAR AND DESH METHODS?

Media Statistika
Accurate stock price forecasting requires appropriate preprocessing, particularly for time series data with high variability and nonlinear patterns.
Michela Sheryl Noven, Respatiwulan Respatiwulan, Winita Sulandari   +2 more
doaj   +3 more sources

A kind of adaptive variable stepsize embedded Runge–Kutta pairs coupled with the Sinc collocation method for solving the KdV equation

Results in Applied Mathematics
For solving the KdV equation, a novel numerical method with high order accuracy in both space and time is proposed. In the spatial direction, Sinc collocation method, which has the property of exponential convergence, is adopted.
Cheng Chen, Wenting Shao
doaj   +2 more sources

Solitonic wave solutions of a Hamiltonian nonlinear atom chain model through the Hirota bilinear transformation method

Open Physics
This study employs the Hirota bilinear transformation method to investigate solitary and soliton solutions resulting from different symmetry wave functions associated with nonlinear atom chain models. These models are complex dynamic systems that have an
Ceesay Baboucarr, Baber Muhammad Z., Ahmed Nauman, Macías Siegfried, Macías-Díaz Jorge E., Medina-Guevara María G.   +5 more
doaj   +2 more sources

New solutions for the (2 + 1)-dimensional nonlinear Schrӧdinger equation

Results in Physics, 2023
New exact solutions to the (1 + 1)-dimensional nonlinear Schrӧdinger equation are obtained by means of the exponential function test method. Further, the solutions of the (2 + 1)-dimensional nonlinear Schrӧdinger equation are also obtained by using ...
Changfu Liu, Gui Mu, Jinmei Liu
doaj   +1 more source