2018-05-25T15:12:55Z
http://ijsts.shirazu.ac.ir/?_action=export&rf=summon&issue=452
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
Tangent Bishop spherical images of a biharmonic B-slant helix in the Heisenberg group Heis3
T.
Korpinar
E.
Turhan
V.
Asil
In this paper, biharmonic slant helices are studied according to Bishop frame in the Heisenberg group Heis3. We give necessary and sufficient conditions for slant helices to be biharmonic. The biharmonic slant helices arecharacterized in terms of Bishop frame in the Heisenberg group Heis3. We give some characterizations for tangent Bishop spherical images of B-slant helix. Additionally, we illustrate four figures of our main theorem.
biharmonic curve
Bishop frame
Heisenberg group
tangent Bishop spherical images
2011
12
06
265
271
http://ijsts.shirazu.ac.ir/article_2150_83a6cae962277f3032abd5d513b313e7.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
Some applications of the product of submodules in multiplication modules
A.
Azizi
C.
Jayaram
Let R be a commutative ring with identity. Let N and K be two submodules of a multiplication R-module M. ThenN=IM and K=JM for some ideals I and J of R. The product of N and K denoted by NK is defined by NK=IJM. Inthis paper we characterize some particular cases of multiplication modules by using the product of submodules.
Multiplication ideal
multiplication module
prime submodule
principal ideal multiplication module
product of submodules
Quasi cyclic submodule
2011
12
06
273
277
http://ijsts.shirazu.ac.ir/article_2151_60ae10c6a476fc88633dba5e5b7ea3f0.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
On compact operators on the Riesz B<sup>m</sup>-difference sequence space
M.
Basarir
E. E.
Kara
In this paper, we give the characterization of some classes of compact operators given by matrices on the normed sequence space , which is a special case of the paranormed Riesz -difference sequence space , . For this purpose, we apply the Hausdorff measure of noncompactness and use some results.
-difference sequence spaces
Hausdorff measure of noncompactness
compact operators
2011
12
06
279
285
http://ijsts.shirazu.ac.ir/article_2152_c3e3bc2cba3ebb5ec4ff041b7b82e856.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
Wavelet solutions of the second Painleve equation
E.
Hesameddini
S.
Shekarpaz
Dynamically adaptive numerical methods have been developed to find solutions for differential equations. Thesubject of wavelet has attracted the interest of many researchers, especially, in finding efficient solutions fordifferential equations. Wavelets have the ability to show functions at different levels of resolution. In this paper, a numerical method is proposed for solving the second Painleve equation based on the Legendre wavelet. The solutions of this method are compared with the analytic continuation and Adomian Decomposition methods and the ability of the Legendre wavelet method is demonstrated.
Multiresolution analysis
Wavelet
Painleve equations
legendre wavelet
Adomian Decomposition
Method
2011
12
06
287
291
http://ijsts.shirazu.ac.ir/article_2153_836c1c7bda66ef58fcead78d7a6f9f97.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
Computing of eigenvalues of sturm-liouville problems with eigenparameter dependent boundary conditions
S. M.
Al-Harbi
The purpose of this article is to use the classical sampling theorem, WKS sampling theorem, to deriveapproximate values of the eigenvalues of the Sturm-Liouville problems with eigenparameter in the boundaryconditions. Error analysis is used to give estimates of the associated error. Higher order approximations are also drived, which lead to more complicated computations. We give some examples and make companions withexisting results.
Eigenvalue problem with eigenparameter in the boundary conditions
sinc methods
computing
eigenvalues
2011
12
06
293
299
http://ijsts.shirazu.ac.ir/article_2154_7af07f50813828309e6177a171dc6da8.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
Direct and fixed point methods approach to the generalized Hyers–Ulam stability for a functional equation having monomials as solutions
H.
Azadi Kenary
C.
Park
The main goal of this paper is the study of the generalized Hyers-Ulam stability of the following functionalequation f (2x y) f (2x y) (n 1)(n 2)(n 3) f ( y) 2n2 f (x y) f (x y) 6 f (x) where n 1,2,3,4 , in non–Archimedean spaces, by using direct and fixed point methods.
Hyers- Ulam stability
non -Archimedean normed space
p - adic field
2011
12
06
301
307
http://ijsts.shirazu.ac.ir/article_2155_b16b3ef844c2102c9773dc67caea12d5.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
Multiplication lattice modules
F.
Callialp
U.
Tekir
Let M be a lattice module over the multiplicative lattice . An module M is called a multiplication latticemodule if for every element N there exists an element such that 1. Our objective is toinvestigate properties of prime elements of multiplication lattice modules.
Multiplicative lattice
lattice modules
maximal element
prime element
2011
12
06
309
313
http://ijsts.shirazu.ac.ir/article_2156_a8cc3a7ca6f0e609a7e25b2e8d47e40a.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
A Square representation technique for locating frequencies that have maximum autocorrelations
M.
Taghavi
From the early 1950s, estimating the autocorrelations of polynomials with coefficients on the unit circle has found applications in Ising spin systems and in surface acoustic wave designs. In this paper, a technique is introduced that not only estimates the autocorrelations, but for some special types of such polynomials, it locates the frequencies at which maximum autocorrelation occurs.
Square representation
stable cycles
Golay pair of polynomials
2011
12
06
315
321
http://ijsts.shirazu.ac.ir/article_2157_04bbc8843564110349d35c2528a97980.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
A class of fourth order differential operators with transmission conditions
Q. X
Yang
W. Y.
Wang
We investigate a class of fourth-order differential operators with eigenparameter dependent boundary conditions and transmission conditions. A self-adjoint linear operator A is defined in a suitable Hilbert space H such that the eigenvalues of such a problem coincide with those of A . We discuss asymptotic behavior of its eigenvalues and completeness of its eigenfunctions. Finally, we obtain the representation of its Green function.
Differential operator
eigenvalues
eigenfunctions
Green function
completeness
2011
12
06
323
332
http://ijsts.shirazu.ac.ir/article_2158_424501ad4b2de2356056969b1ec44293.pdf
Iranian Journal of Science and Technology (Sciences)
Transaction A: Science
1028-6276
1028-6276
2011
35
4
On the global asymptotic stability for a rational recursive sequence
E. M. E.
Zayed
A.
El-Moneam
The main objective of this paper is to study the boundedness character, the periodicity character, the convergenceand the global stability of the positive solutions of the nonlinear rational difference equation/ , n 0,1,2,....0 01 kii n ikin i n i x x B xwhere the coefficients i i B , , together with the initial conditions ,.... , , 1 0 x x x k are arbitrarypositive real numbers, while k is a positive integer number.
Difference equations
boundedness character
prime period two solution
global stability
convergence
2011
12
06
333
339
http://ijsts.shirazu.ac.ir/article_2159_22ac2ec666f4144d2791a7a9a9bcce24.pdf