Results 21 to 30 of about 763,518 (232)

Evaluation of biases present in the cohort multiple randomised controlled trial design: a simulation study [PDF]

open access: yes, 2017
Background The cohort multiple randomised controlled trial (cmRCT) design provides an opportunity to incorporate the benefits of randomisation within clinical practice; thus reducing costs, integrating electronic healthcare records, and improving ...
A Burton   +20 more
core   +4 more sources

Optimizing option pricing: Exact and approximate solutions for the time-fractional Ivancevic model

open access: yesAlexandria Engineering Journal, 2023
This research investigates the time fractional Ivancevic option pricing model and presents two distinct solution methods: the invariant subspace method for obtaining exact solutions and the residual power series method for generating approximate ...
Khalid K. Ali, M.A. Maaty, M. Maneea
doaj   +1 more source

Solutions of Time Fractional fKdV Equation Using the Residual Power Series Method

open access: yesCumhuriyet Science Journal, 2022
The fifth-order Korteweg-de Vries (fKdV) equation is a nonlinear model in various long wave physical phenomena. The residual power series method (RPSM) is used to gain the approximate solutions of the time fractional fKdV equation in this study.
Sevil Çulha Ünal
doaj   +1 more source

Source Galerkin Calculations in Scalar Field Theory [PDF]

open access: yes, 1995
In this paper, we extend previous work on scalar $\phi^4$ theory using the Source Galerkin method. This approach is based on finding solutions $Z[J]$ to the lattice functional equations for field theories in the presence of an external source $J$.
Bender   +10 more
core   +2 more sources

Methods for removal of unwanted signals from gravity time-series : comparison using linear techniques complemented with analysis of system dynamics [PDF]

open access: yes, 2017
We thanks the participants of the 35th General Assembly of the European Seismological Commission for comments on preliminary results. The authors are grateful to all IGETS contributors, particularly to the station operators and to ISDC/GFZ-Potsdam for ...
Abarbanel H. D. I.   +15 more
core   +2 more sources

Generation of potential/surface density pairs in flat disks Power law distributions

open access: yes, 2007
We report a simple method to generate potential/surface density pairs in flat axially symmetric finite size disks. Potential/surface density pairs consist of a ``homogeneous'' pair (a closed form expression) corresponding to a uniform disk, and a ...
A. Pierens   +15 more
core   +3 more sources

On Comparing Analytical and Numerical Solutions of Time Caputo Fractional Kawahara Equations via Some Techniques

open access: yesMathematics
One of the important techniques for solving several partial differential equations is the residual power series method, which provides the approximate solutions of differential equations in power series form.In this work, we use Aboodh transform in the ...
Faten H. Damag
doaj   +1 more source

Approximate Solution of Nonlinear Time-Fractional PDEs by Laplace Residual Power Series Method

open access: yesMathematics, 2022
Most physical phenomena are formulated in the form of non-linear fractional partial differential equations to better understand the complexity of these phenomena.
Hussam Aljarrah   +3 more
doaj   +1 more source

Data series subtraction with unknown and unmodeled background noise

open access: yes, 2014
LISA Pathfinder (LPF), ESA's precursor mission to a gravitational wave observatory, will measure the degree to which two test-masses can be put into free-fall, aiming to demonstrate a residual relative acceleration with a power spectral density (PSD ...
Armano, Michele   +22 more
core   +3 more sources

Applications of General Residual Power Series Method to Differential Equations with Variable Coefficients

open access: yesDiscrete Dynamics in Nature and Society, 2018
This paper is devoted to studying the analytical series solutions for the differential equations with variable coefficients. By a general residual power series method, we construct the approximate analytical series solutions for differential equations ...
Bochao Chen, Li Qin, Fei Xu, Jian Zu
doaj   +1 more source

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