Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Fazlollah Soleymani"'
Autor:
Fazlollah Soleymani, Mahdiar Barfeie
Publikováno v:
پژوهشهای ریاضی, Vol 8, Iss 3, Pp 117-131 (2022)
In this paper we, obtain the weight of radial basis finite difference formula for some differential operators. These weights are used to obtain the local truncation error in powers of the inter-node distance and the shape parameter of radial basis fu
Externí odkaz:
https://doaj.org/article/8cc8f877521e4c928044fa7309b7f3ca
Publikováno v:
AIMS Mathematics, Vol 5, Iss 1, Pp 226-235 (2020)
In this paper, a linear system of mixed Volterra-Fredholm integral equations is considered. The problem of existence and uniqueness of its solution is investigated and proved in a complete metric space by using the Banach fixed-point theorem. Also, a
Externí odkaz:
https://doaj.org/article/e9b32c1c41fd446ea871c84f7976fa3b
Publikováno v:
Mathematics, Vol 9, Iss 1, p 17 (2020)
Bankruptcy prediction has been broadly investigated using financial ratios methodologies. One involved factor is the quality of the portfolio of loans which is given. Hence, having a model to classify/predict position of each loan candidate based on
Externí odkaz:
https://doaj.org/article/6bb73612f0904cf0940056bdb20137d7
Publikováno v:
Mathematical Modelling and Analysis, Vol 23, Iss 1 (2018)
In this work, we apply the local Wendland radial basis function (RBF) for solving the time-dependent multi dimensional option pricing nonlinear PDEs. Firstly, cross derivative terms of the PDE are removed with a change of spatial variables based in L
Externí odkaz:
https://doaj.org/article/371f4821fefa4fad99d082c342bc960e
Publikováno v:
Algorithms, Vol 8, Iss 4, Pp 982-998 (2015)
An application of iterative methods for computing the Moore–Penrose inverse in balancing chemical equations is considered. With the aim to illustrate proposed algorithms, an improved high order hyper-power matrix iterative method for computing gene
Externí odkaz:
https://doaj.org/article/714678a5fc944cf8bd47582d456b99b7
Publikováno v:
Algorithms, Vol 8, Iss 3, Pp 415-423 (2015)
In this work, we propose a new fourth-order Jarratt-type method for solving systems of nonlinear equations. The local convergence order of the method is proven analytically. Finally, we validate our results via some numerical experiments including an
Externí odkaz:
https://doaj.org/article/48949b9aca36417ab3807577532318d7
Publikováno v:
Mathematics, Vol 7, Iss 3, p 306 (2019)
Steffensen-type methods with memory were originally designed to solve nonlinear equations without the use of additional functional evaluations per computing step. In this paper, a variant of Steffensen’s method is proposed which is derivative-free
Externí odkaz:
https://doaj.org/article/87ababd87eae497cb381abc732917bc3
Autor:
Fazlollah Soleymani
Publikováno v:
Opuscula Mathematica, Vol 33, Iss 1, Pp 163-173 (2013)
The interest in efficient root-finding iterations is nowadays growing and influenced by the widespread use of high-speed computers. On the other hand, the calculation of derivatives is often hard, when the problems are formulated in terms of nonlinea
Externí odkaz:
https://doaj.org/article/39530aa39be8485b9098dee58c58a7c7
Autor:
Fazlollah Soleymani
Publikováno v:
Opuscula Mathematica, Vol 33, Iss 2, Pp 337-344 (2013)
An accurate numerical method is established for matrix inversion. It is shown theoretically that the scheme possesses the high order of convergence of seven. Subsequently, the method is taken into account for solving linear systems of equations. The
Externí odkaz:
https://doaj.org/article/bc25a4e0be7647948cb9911d38d78ff8
Autor:
Mahdi Sharifi, Fazlollah Soleymani
Publikováno v:
Journal of Applied Computer Science & Mathematics, Vol 4, Iss 8, Pp 45-49 (2010)
In this paper the influence of relaxations on a specialfuzzy linear programming problem when the parameters arefuzzy, with stochastic dominance constraints of the first order isstudied. In fact, after the defuzzification and employing therelaxation o
Externí odkaz:
https://doaj.org/article/23d99cfdc1ba45849a417f2335156c05