Results 11 to 20 of about 3,335,808 (299)

Double exponential transformation in the Sinc-Galerkin method for the solution of problems in calculus of variations

open access: yesCommunications in Numerical Analysis, 2014
In this paper, sinc-Galerkin method based on the double exponential transformation is used for finding the solution of boundary value problems which arise from the problems of calculus of variations. This approximation reduces the problems to an explicit system of algebraic equations.
M. Zarebnia, N. Aliniya
openaire   +2 more sources

Function approximation method based on the IMT-double exponential transformation and the Sinc approximation for periodic functions

open access: yesJapan Journal of Industrial and Applied Mathematics
Techniques of variable transformation such as the double exponential (DE) transformation and the IMT have become well known in numerical integration. Recently, the DE transformation has also been applied to various computation tasks, such as numerical ...
Hidenori Ogata
openaire   +2 more sources

An upper bound estimate and stability for the global error of numerical integration using double exponential transformation [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2018
The double exponential formula was introduced for calculating definite integrals with singular point oscillation functions and Fourier integral. The double exponential transformation is not only useful for numerical computations but it is also used in different methods of Sinc theory.
Khatibi, Arezoo, Khatibi, Omid
exaly   +4 more sources

Gaussian Filtering Using a Spherical-Radial Double Exponential Cubature

open access: yesIEEE Open Journal of Signal Processing
Gaussian filters use quadrature rules or cubature rules to recursively solve Gaussian-weighted integrals. Classical and contemporary methods use stable rules with a minimal number of cubature points to achieve the highest accuracy. Gaussian quadrature is
Quade Butler   +2 more
doaj   +2 more sources

Forecasting Neonatal Mortality in Ethiopia to Assess Progress Toward National and International Reduction Targets Using Classical Techniques and Deep Learning: Time-Series Forecasting Study [PDF]

open access: yesOnline Journal of Public Health Informatics
BackgroundNeonatal disease and its outcomes are important indicators for a responsive health care system and encompass the effects of socioeconomic and environmental factors on new-borns and mothers.
Shimels Derso Kebede
doaj   +2 more sources

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

open access: yesOpen 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   +5 more
doaj   +2 more sources

Double Transformation Sin-Exponential Distribution for Modeling Lifetime Data

open access: yesModern Journal of Statistics
This paper presents a new approach known as double transformation sine-exponential distribution (DT-Sin-E), a multi-processed distribution derived from two-stage transformation of the exponential baseline within a sine-generated context to improve the ...
Khnsaa F. Hameed Alazawey   +2 more
semanticscholar   +2 more sources

DE Sinc-Collocation Method for Solving a Class of Second-Order Nonlinear BVPs [PDF]

open access: yesMathematics Interdisciplinary Research, 2021
In this work, we develop the Sinc-collocation method coupled with a Double exponential transformation for solving a special class of nonlinear second-order multi-point boundary value problems (MBVP).
Ali Eftekhari, Abbas Saadatmandi
doaj   +1 more source

Statistical procedures based on exponential scores [PDF]

open access: yes, 1983
Many statistical models have been proposed in which underlying exponential distributions are assumed. Applications of such models occur in a large number of areas, for example in reliability and life-testing investigations and in the study of the ...
Young, D H
core   +6 more sources

Lump-Type Solutions, Lump Solutions, and Mixed Rogue Waves for Coupled Nonlinear Generalized Zakharov Equations

open access: yesMathematics, 2023
This article studies diverse forms of lump-type solutions for coupled nonlinear generalized Zakharov equations (CNL-GZEs) in plasma physics through an appropriate transformation approach and bilinear equations.
Aly R. Seadawy   +2 more
doaj   +1 more source

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