Results 21 to 30 of about 2,123,789 (292)

Approximate Solution of Emden-Fowler Equation Using the Galerkin Method [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2023
The Emden-Fowler equation (E-F.Eq.) used in mathematical with other science like physics, chemical physics and astrophysics, also this equation can be reduces to the Lane–Emden equation with specified function and used it in different sciences with ...
Asmaa Aswhad
doaj   +1 more source

Approximate k-space models and Deep Learning for fast photoacoustic reconstruction [PDF]

open access: yes, 2018
We present a framework for accelerated iterative reconstructions using a fast and approximate forward model that is based on k-space methods for photoacoustic tomography. The approximate model introduces aliasing artefacts in the gradient information for
Arridge, Simon   +6 more
core   +2 more sources

Nonclassical Approximate Symmetries of Evolution Equations with a Small Parameter [PDF]

open access: yes, 2006
We introduce a method of approximate nonclassical Lie-B\"acklund symmetries for partial differential equations with a small parameter and discuss applications of this method to finding of approximate solutions both integrable and nonintegrable equations ...
Kordyukova, Svetlana
core   +4 more sources

Method Of Obtaining Approximate Formulas [PDF]

open access: yes, 2018
The two-parameter method of approximating the sum of a power series in terms of its first three terms of the expansion, which allows one to obtain analytic approximations of various functions, decomposes into a Maclaurin series.
Ludanov, K. (Konstantin)
core   +2 more sources

On the property of divisibility points of elliptic curves over finite fields on two

open access: yesНаука. Инновации. Технологии, 2022
In the article it is proved a theorem on the determination of the divisibility properties of the elliptic curve, improved algorithms for finding the order of the elliptic curve.
Michail Grigorievich Babenko   +2 more
doaj  

On a Stochastic Approximation Method [PDF]

open access: yesThe Annals of Mathematical Statistics, 1954
Asymptotic properties are established for the Robbins-Monro [1] procedure of stochastically solving the equation $M(x) = \alpha$. Two disjoint cases are treated in detail. The first may be called the "bounded" case, in which the assumptions we make are similar to those in the second case of Robbins and Monro. The second may be called the "quasi-linear"
openaire   +3 more sources

Approximate inference of the bandwidth in multivariate kernel density estimation [PDF]

open access: yes, 2011
Kernel density estimation is a popular and widely used non-parametric method for data-driven density estimation. Its appeal lies in its simplicity and ease of implementation, as well as its strong asymptotic results regarding its convergence to the true ...
Bishop   +41 more
core   +1 more source

Finding the closed-form solutions of dissipative oscillatory systems

open access: yesScientific Reports, 2022
This paper shows how to use the approximate Hamiltonian approach for the non-conservative system not capable of possessing Hamiltonian. Using the approximate Hamiltonian method for a non-conservative system is not possible in general. We propose a way to
Saba Irum, Imran Naeem
doaj   +1 more source

An Approximate Analytical Method for a Slot Ring Radome

open access: yesEngineering, 2023
In this paper, an in-band and out-of-band microwave wireless power-transmission characteristic analysis of a slot ring radome based on an approximate analytical method is proposed.
Kang Luo   +3 more
doaj   +1 more source

Approximate determination of stress intensity factor for multiple surface cracks [PDF]

open access: yesFME Transactions, 2018
In this paper a versatile and easy to use approximate procedure was used for the estimation of mode I stress intensity factors in case of multiple surface cracks in a three dimensional elastic body, subjected to remote uniaxial tensile loading.
Kastratović Gordana   +3 more
doaj  

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