2018-05-26T09:58:24Z
http://msj.iau-arak.ac.ir/?_action=export&rf=summon&issue=113666
Theory of Approximation and Applications
Theory Approx. Appl.
2538-2217
2538-2217
2017
11
1
Homotopy Perturbation Method and Aboodh Transform for Solving Nonlinear Partial Differential Equations
Khalid
Aboodh
Here, a new method called Aboodh transform homotopy perturbation method(ATHPM) is used to solve nonlinear partial dierential equations, we presenta reliable combination of homotopy perturbation method and Aboodh transformto investigate some nonlinear partial dierential equations. The nonlinearterms can be handled by the use of homotopy perturbation method. The resultsshow the eciency of this method. Aboodh transform was introducedby Khalid Aboodh to facilitate the process of solving ordinary and partialdifferential equations in the time domain.
Aboodh transform
Homotopy perturbation method
Nonlinear partial differential equations
2017
03
01
1
12
http://msj.iau-arak.ac.ir/article_529131_b757da9ffa95c97e4e4977d9ce9c9590.pdf
Theory of Approximation and Applications
Theory Approx. Appl.
2538-2217
2538-2217
2017
11
1
Bifurcation Problem for Biharmonic Asymptotically Linear Elliptic Equations
Makkia
Dammak
Majdi
El Ghord
In this paper, we investigate the existence of positive solutions for the ellipticequation $Delta^{2},u+c(x)u = lambda f(u)$ on a bounded smooth domain $Omega$ of $R^{n}$, $ngeq2$, with Navier boundary conditions. We show that there exists an extremal parameter$lambda^{ast}>0$ such that for $lambda< lambda^{ast}$, the above problem has a regular solution butfor $lambda> lambda^{ast}$, the problem has no solution even in the week sense.We also show that $lambda^{ast}=frac{lambda_{1}}{a}$ if$ lim_{trightarrow infty}f(t)-at=lgeq0$ and for $lambda< lambda^{ast}$, the solution is unique but for $l
2017
03
01
13
37
http://msj.iau-arak.ac.ir/article_529132_71be66b10362d68bd18d51a9dc7dd2bb.pdf
Theory of Approximation and Applications
Theory Approx. Appl.
2538-2217
2538-2217
2017
11
1
A Numerical Approach for Solving Forth Order Fuzzy Differential Equations Under Generalized Differentiability
E
Ahmadi
N.
Ahmadi
In this paper a numerical method for solving forth order fuzzy dierentialequations under generalized differentiability is proposed. This method is basedon the interpolating a solution by piecewise polynomial of degree 8 in the rangeof solution . We investigate the existence and uniqueness of solutions. Finally anumerical example is presented to illustrate the accuracy of the new technique.
2017
03
01
39
56
http://msj.iau-arak.ac.ir/article_529142_f609ed287ae23bb8968d574ca5e49d60.pdf
Theory of Approximation and Applications
Theory Approx. Appl.
2538-2217
2538-2217
2017
11
1
Higher Derivations Associated with the Cauchy-Jensen Type Mapping
حمیدرضا
رییسی
Let H be an infinite--dimensional Hilbert space and K(H) be the set of all compact operators on H. We will adopt spectral theorem for compact self-adjoint operators, to investigate of higher derivation and higher Jordan derivation on K(H) associated with the following cauchy-Jencen type functional equation
2f(frac{T+S}{2}+R)=f(T)+f(S)+2f(R)
for all T,S,Rin K(H).
2017
03
01
57
68
http://msj.iau-arak.ac.ir/article_529143_6fc2ce6a8f235e526591b2883a5ab7cd.pdf
Theory of Approximation and Applications
Theory Approx. Appl.
2538-2217
2538-2217
2017
11
1
w_0-Nearest Points and w_0-Farthest Point in Normed Linear Spaces
حمید
مظاهری تهرانی
w0-Nearest Points and w0-Farthest Point in Normed Linear Spaces
2017
03
01
69
79
http://msj.iau-arak.ac.ir/article_529148_d8229eff154d61a2524d5023b7d82161.pdf
Theory of Approximation and Applications
Theory Approx. Appl.
2538-2217
2538-2217
2017
11
1
The Study Properties of Subclass of Starlike Functions
Mohammad
Taati
In this paper we introduce and investigate a certain subclass of univalentfunctions which are analytic in the unit disk U.Such results as coecientinequalities. The results presented here would provide extensions of those givenin earlier works.
2017
03
01
81
86
http://msj.iau-arak.ac.ir/article_529149_492a9c8e730b5f6cb92ea5191d15548d.pdf
Theory of Approximation and Applications
Theory Approx. Appl.
2538-2217
2538-2217
2017
11
1
Elliptic Function Solutions of (2+1)-Dimensional Breaking Soliton Equation by Sinh-Cosh Method and Sinh-Gordon Expansion Method
پروانه
نبی پور کیسمی
In this paper, based on sinh-cosh method and sinh-Gordon expansion method,families of solutions of (2+1)-dimensional breaking soliton equation are obtained.These solutions include Jacobi elliptic function solution, soliton solution,trigonometric function solution.
2017
03
01
87
98
http://msj.iau-arak.ac.ir/article_529150_1a09bff799c2e81f4b479e09018d95f0.pdf
Theory of Approximation and Applications
Theory Approx. Appl.
2538-2217
2538-2217
2017
11
1
Analytic Solution of Fuzzy Second Order Differential Equations under H-Derivation
Laleh
Hooshangian
In this paper, the solution of linear second order equations with fuzzy initialvalues are investigated. The analytic general solutions of them using a rstsolution is founded. The parametric form of fuzzy numbers to solve the secondorder equations is applied. The solutions are searched in four cases. Finallythe example is got to illustrate more and the solutions are shown in gures forfour cases.
2017
03
01
99
115
http://msj.iau-arak.ac.ir/article_531008_f5db59fa0f25e21f608b49598cbc39c4.pdf