Islamic Azad University
Theory of Approximation and Applications
2538-2217
11
1
2017
03
01
Homotopy Perturbation Method and Aboodh Transform for Solving Nonlinear Partial Differential Equations
1
12
EN
Khalid
Aboodh
Department of Mathematics Omdurman Islamic University (http: //www. fst. oiu. edu. sd) sudan
khalidmath78@yahoo.com
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
http://msj.iau-arak.ac.ir/article_529131.html
http://msj.iau-arak.ac.ir/article_529131_b757da9ffa95c97e4e4977d9ce9c9590.pdf
Islamic Azad University
Theory of Approximation and Applications
2538-2217
11
1
2017
03
01
Bifurcation Problem for Biharmonic Asymptotically Linear Elliptic Equations
13
37
EN
Makkia
Dammak
University of Tunis El Manar, Higher Institute of Medical Technologies of Tunis
09 doctor Zouhair Essafi Street 1006 Tunis,Tunisia
makkia.dammak@gmail.com
Majdi
El Ghord
University of Tunis El Manar, Faculty of Sciences of Tunis, Campus Universities 2092 Tunis, Tunisia
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
http://msj.iau-arak.ac.ir/article_529132.html
http://msj.iau-arak.ac.ir/article_529132_71be66b10362d68bd18d51a9dc7dd2bb.pdf
Islamic Azad University
Theory of Approximation and Applications
2538-2217
11
1
2017
03
01
A Numerical Approach for Solving Forth Order Fuzzy Differential Equations Under Generalized Differentiability
39
56
EN
E
Ahmadi
Department of Mathematics, Shahr-e-Qods Branch, Islamic Azad
University, Tehran, Iran
e.ahmadi@qodsiau.ac.ir
N.
Ahmadi
ِDepartment of Mathematics, Varamin-Pishva Branch, Islamic Azad
University, Varamin, Iran
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.
http://msj.iau-arak.ac.ir/article_529142.html
http://msj.iau-arak.ac.ir/article_529142_f609ed287ae23bb8968d574ca5e49d60.pdf
Islamic Azad University
Theory of Approximation and Applications
2538-2217
11
1
2017
03
01
Higher Derivations Associated with the Cauchy-Jensen Type Mapping
57
68
EN
حمیدرضا
رییسی
دانشجوی دکتری دانشگاه سمنان
hamidreza.reisi@gmail.com
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).
http://msj.iau-arak.ac.ir/article_529143.html
http://msj.iau-arak.ac.ir/article_529143_6fc2ce6a8f235e526591b2883a5ab7cd.pdf
Islamic Azad University
Theory of Approximation and Applications
2538-2217
11
1
2017
03
01
w_0-Nearest Points and w_0-Farthest Point in Normed Linear Spaces
69
79
EN
حمید
مظاهری تهرانی
دانشگاه یزد
hmazaheri@yazd.ac.ir
w0-Nearest Points and w0-Farthest Point in Normed Linear Spaces
http://msj.iau-arak.ac.ir/article_529148.html
http://msj.iau-arak.ac.ir/article_529148_d8229eff154d61a2524d5023b7d82161.pdf
Islamic Azad University
Theory of Approximation and Applications
2538-2217
11
1
2017
03
01
The Study Properties of Subclass of Starlike Functions
81
86
EN
Mohammad
Taati
Department of Mathematics, Payame Noor University, P.O.Box
19395-3697, Tehran, Iran.
m-taati@pnu.ac.ir
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.
http://msj.iau-arak.ac.ir/article_529149.html
http://msj.iau-arak.ac.ir/article_529149_492a9c8e730b5f6cb92ea5191d15548d.pdf
Islamic Azad University
Theory of Approximation and Applications
2538-2217
11
1
2017
03
01
Elliptic Function Solutions of (2+1)-Dimensional Breaking Soliton Equation by Sinh-Cosh Method and Sinh-Gordon Expansion Method
87
98
EN
پروانه
نبی پور کیسمی
مدرس آموزشگاه
parvanehnabipour@yahoo.com
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.
http://msj.iau-arak.ac.ir/article_529150.html
http://msj.iau-arak.ac.ir/article_529150_1a09bff799c2e81f4b479e09018d95f0.pdf
Islamic Azad University
Theory of Approximation and Applications
2538-2217
11
1
2017
03
01
Analytic Solution of Fuzzy Second Order Differential Equations under H-Derivation
99
115
EN
Laleh
Hooshangian
Department of Mathematics, Dezful Branch, Islamic Azad University,
Dezful, Iran.
l-hooshangian@yahoo.com
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.
http://msj.iau-arak.ac.ir/article_531008.html
http://msj.iau-arak.ac.ir/article_531008_f5db59fa0f25e21f608b49598cbc39c4.pdf