2018-06-23T06:18:31Z
http://jlta.iauctb.ac.ir/?_action=export&rf=summon&issue=110013
Journal of Linear and Topological Algebra (JLTA)
J. Linear Topol. Algebr
2252-0201
2252-0201
2013
02
02
Commuting $pi$-regular rings
Sh.
Sahebi
M.
Azadi
R is called commuting regular ring (resp. semigroup) if for each x,y $in$ R there exists a $in$ R such that xy = yxayx. In this paper, we introduce the concept of commuting $pi$-regular rings (resp. semigroups) and study various properties of them.
Regular
Commuting $pi$-regular
2013
06
01
67
70
http://jlta.iauctb.ac.ir/article_510051_7ee88bde781db5864d87b43ff9257b0b.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear Topol. Algebr
2252-0201
2252-0201
2013
02
02
On strongly J-clean rings associated with polynomial identity g(x) = 0
H.
Haj Seyyed Javadi
S.
Jamshidvand
M.
Maleki
In this paper, we introduce the new notion of strongly J-clean rings associated with polynomial identity g(x) = 0, as a generalization of strongly J-clean rings. We denote strongly J-clean rings associated with polynomial identity g(x) = 0 by strongly g(x)-J-clean rings. Next, we investigate some properties of strongly g(x)-J-clean.
strongly g(x)-clean rings
strongly g(x)-J-clean rings
strongly J-clean rings
rings generated by units
2013
06
01
71
76
http://jlta.iauctb.ac.ir/article_510052_d11cad8b25bc9742b45b25f407279a7d.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear Topol. Algebr
2252-0201
2252-0201
2013
02
02
A note on unique solvability of the absolute value equation
T.
Lotfi
H.
Vieseh
It is proved that applying sufficient regularity conditions to the interval matrix $[A-|B|,A + |B|]$, we can create a new unique solvability condition for the absolute value equation $Ax + B|x|=b$, since regularity of interval matrices implies unique solvability of their corresponding absolute value equation. This condition is formulated in terms of positive deniteness of a certain point matrix. Special case $B=-I$ is veried too as an application.
Eigenvalue
Generalized eigenvalue
Quadratic eigenvalue
Numerical computation
Iterative method
2013
06
01
77
81
http://jlta.iauctb.ac.ir/article_510053_9e8e77449fc3ae8d86aa53b9660b2a19.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear Topol. Algebr
2252-0201
2252-0201
2013
02
02
On edge detour index polynomials
Sh.
Safari Sabet
M.
Farmani
O.
Khormali
A.
Mahmiani
Z.
Bagheri
The edge detour index polynomials were recently introduced for computing the edge detour indices. In this paper we find relations among edge detour polynomials for the 2-dimensional graph of $TUC_4C_8(S)$ in a Euclidean plane and $TUC4C8(S)$ nanotorus.
Heun equation
Wiener process
Stochastic differential equation
Linear equations system
2013
06
01
83
89
http://jlta.iauctb.ac.ir/article_510054_51b0bbf91b051396b9b9a7e4ff566afa.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear Topol. Algebr
2252-0201
2252-0201
2013
02
02
Operational matrices with respect to Hermite polynomials and their applications in solving linear differential equations with variable coefficients
Z.
Kalateh Bojdi
S.
Ahmadi-Asl
A.
Aminataei
In this paper, a new and efficient approach is applied for numerical approximation of the linear differential equations with variable coeffcients based on operational matrices with respect to Hermite polynomials. Explicit formulae which express the Hermite expansion coeffcients for the moments of derivatives of any differentiable function in terms of the original expansion coefficients of the function itself are given in the matrix form. The main importance of this scheme is that using this approach reduces solving the linear differential equations to solve a system of linear algebraic equations, thus greatly simplifying the problem. In addition, two experiments are given to demonstrate the validity and applicability of the method.
Operational matrices
Hermite polynomials
Linear differential equations with variable coefficients
2013
06
01
91
103
http://jlta.iauctb.ac.ir/article_510055_7694e7a62ce277393219dc3f08d757f0.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear Topol. Algebr
2252-0201
2252-0201
2013
02
02
A new approach to solve fuzzy system of linear equations by Homotopy perturbation method
M.
Paripour
J.
Saeidian
A.
Sadeghi
In this paper, we present an efficient numerical algorithm for solving fuzzy systems of linear equations based on homotopy perturbation method. The method is discussed in detail and illustrated by solving some numerical examples.
Fuzzy number
Fuzzy system of linear equations
Homotopy perturbation method
Auxiliary matrix
2013
06
01
105
115
http://jlta.iauctb.ac.ir/article_514256_d54426e4ec1b020014ce00c56967a4ca.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear Topol. Algebr
2252-0201
2252-0201
2013
02
02
The method of fundamental solutions for transient heat conduction in functionally graded materials: some special cases
M.
Nili Ahmadabadi
M.
Arab
F. M.
Maalek Ghaini
In this paper, the Method of Fundamental Solutions (MFS) is extended to solve some special cases of the problem of transient heat conduction in functionally graded materials. First, the problem is transformed to a heat equation with constant coefficients using a suitable new transformation and then the MFS together with the Tikhonov regularization method is used to solve the resulting equation.
Heat conduction
Functionally graded materials
Method of fundamental solutions
2013
06
01
117
127