On (σ, τ)-module extension Banach algebras
M
Fozouni
Department of Mathematics, Gonbad Kavous University,
P.O. Box 163, Gonbad-e Kavous, Golestan, Iran.
author
text
article
2014
eng
Let A be a Banach algebra and X be a Banach A-bimodule. In this paper, we dene a new product on A X and generalize the module extension Banach algebras. We obtain characterizations of Arens regularity, commutativity, semisimplity, and study the ideal structure and derivations of this new Banach algebra.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
03
v.
04
no.
2014
185
194
http://jlta.iauctb.ac.ir/article_510045_bfb8f87306cc7d536479e9ca016263f7.pdf
Soft regular generalized b-closed sets in soft topological spaces
S. M.
Al-Salem
Department of Mathematics, College of Science, Basra, Iraq.
author
text
article
2014
eng
The main purpose of this paper is to introduce and study new classes of soft
closed sets like soft regular generalized b-closed sets in soft topological spaces (brie
y soft
rgb-closed set) Moreover, soft rg-closed, soft gpr-closed, soft gb-closed, soft gsp-closed, soft
g-closed, soft gb-closed, and soft sgb-closed sets in soft topological spaces are introduced in
this paper and we investigate the relations between soft rgb-closed set and the associated soft
sets. Also, the concept of soft semi-regularization of soft topology is introduced and studied
their some properties. We introduce these concepts which are dened over an initial universe
with a xed set of parameters.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
03
v.
04
no.
2014
196
204
http://jlta.iauctb.ac.ir/article_510050_4ac0956f45f51114ac59f26782eb7c83.pdf
OD-characterization of U_3 (9) and its group of automorphisms
P
Nosratpour
Department of Mathematics, Ilam Branch,
Islamic Azad University, Ilam, Iran.
author
text
article
2014
eng
Let L = U3(9) be the simple projective unitary group in dimension 3 over a eld with 92 elements. In this article, we classify groups with the same order and degree pattern as an almost simple group related to L. Since Aut(L) = Z4 hence almost simple groups related to L are L, L : 2 or L : 4. In fact, we prove that L, L : 2 and L : 4 are OD-characterizable.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
03
v.
04
no.
2014
205
209
http://jlta.iauctb.ac.ir/article_510046_ea08b44affe36d029961b12580fb0be4.pdf
On φ-Connes amenability of dual Banach algebras
A
Mahmoodi
Department of Mathematics, Islamic Azad University,
Central Tehran Branch, Tehran, Iran.
author
text
article
2014
eng
Let φ be a w
-continuous homomorphism from a dual Banach algebra to C.
The notion of φ-Connes amenability is studied and some characterizations is given. A type
of diagonal for dual Banach algebras is dened. It is proved that the existence of such a
diagonal is equivalent to φ-Connes amenability. It is also shown that φ-Connes amenability
is equivalent to so-called φ-splitting of a certain short exact sequence.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
03
v.
04
no.
2014
211
217
http://jlta.iauctb.ac.ir/article_510047_337587854110ff69f293c30afd82764b.pdf
Fixed point theorems for α-ψ-ϕ-contractive integral type mappings
Z
Badehian
Department of Mathematics, Islamic Azad University, Central Tehran Branch,
PO. Code 13185-768, Tehran, Iran.
author
M. S.
Asgari
Department of Mathematics, Islamic Azad University, Central Tehran Branch,
PO. Code 13185-768, Tehran, Iran.
author
text
article
2014
eng
In this paper, we introduce a new concept of - -ϕ-contractive integral type mappings and establish some new xed point theorems in complete metric spaces.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
03
v.
04
no.
2014
219
230
http://jlta.iauctb.ac.ir/article_510048_bf7090acee18525c3ae2e4653f33bf53.pdf
Steensen method for solving nonlinear matrix equation X+A^T X^(-1) A=Q
A
Nazari
Department of Mathematics, Arak University, P.O. Box 38156-8-8349, Arak, Iran.
author
Kh
Sayehvand
Faculty of Mathematical Sciences, University of Malayer, P. O. Box 16846-13114,
Malayer, Iran.
author
M
Rostami
Faculty of Mathematical Sciences, University of Malayer, P. O. Box 16846-13114,
Malayer, Iran.
author
text
article
2014
eng
In this article we study Steensen method to solve nonlinear matrix equation
X+A^T X^(-1) A=Q, when A is a normal matrix. We establish some conditions
that generate a sequence of positive denite matrices which converges to solution
of this equation.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
03
v.
04
no.
2014
231
247
http://jlta.iauctb.ac.ir/article_510049_12133f3cde7afd2038f6f49d52566c61.pdf