eng
Central Tehran Branch. IAU
Journal of Linear and Topological Algebra (JLTA)
2252-0201
2345-5934
2016-06-01
05
01
1
13
520622
Existence and multiplicity of positive solutions for a class of semilinear elliptic system with nonlinear boundary conditions
F Yaghoobi
fm.yaghoobi@gmail.com
1
J Shamshiri
jamileshamshiri@gmail.com
2
Department of Mathemetics, College of Science, Hamedan Branch, Islamic Azad University, Hamedan, Iran
Department of Mathematics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
This study concerns the existence and multiplicity of positive weak solutions for a class ofsemilinear elliptic systems with nonlinear boundary conditions. Our results is depending onthe local minimization method on the Nehari manifold and some variational techniques. Alsoby using Mountain Pass Lemma, we establish the existence of at least one solution withpositive energy.
http://jlta.iauctb.ac.ir/article_520622_679af548d569f570d0e290d3f5bd193f.pdf
Critical point
Semilinear elliptic system
Nonlinear boundary value problem
Fibering map
Nehari manifold
eng
Central Tehran Branch. IAU
Journal of Linear and Topological Algebra (JLTA)
2252-0201
2345-5934
2016-06-01
05
01
15
28
521629
Subcategories of topological algebras
V Gompa
vgompa@jsu.edu
1
Troy University
In addition to exploring constructions and properties of limits and colimits in categories of topologicalalgebras, we study special subcategories of topological algebras and their properties. In particular, undercertain conditions, reflective subcategories when paired with topological structures give rise to reflectivesubcategories and epireflective subcategories give rise to epireflective subcategories.
http://jlta.iauctb.ac.ir/article_521629_e164b9beeab103f98558241a96c40cca.pdf
monotopolocial category
topological category
topological functors
universal
algebra
topological algebra
eng
Central Tehran Branch. IAU
Journal of Linear and Topological Algebra (JLTA)
2252-0201
2345-5934
2016-06-01
05
01
29
39
522437
Common fixed point results on vector metric spaces
G Soleimani Rad
gh.soleimani2008@gmail.com
1
I Altun
ialtun@kku.edu.tr
2
Young Researchers and Elite club, Central Tehran Branch, Islamic Azad University, Tehran, Iran
Department of Mathematics, Faculty of Science and Arts, Kirikkale University, 71450 Yahsihan, Kirikkale, Turkey
In this paper we consider the so called a vector metric space, which is a generalization of metric space, where the metric is Riesz space valued. We prove some common fixed point theorems for three mappings in this space. Obtained results extend and generalize well-known comparable results in the literature.
http://jlta.iauctb.ac.ir/article_522437_ed74172d3ea837fc9ce24a67702ed125.pdf
Vector metric space
Riesz space
Common fixed point
Weakly compatible pairs
eng
Central Tehran Branch. IAU
Journal of Linear and Topological Algebra (JLTA)
2252-0201
2345-5934
2016-06-01
05
01
41
46
522724
A note on quasi irresolute topological groups
T Oner
onertarkan@gmail.com
1
A Ozek
alperozek88@gmail.com
2
Muğla Sıtkı Kocman University-Turkey
Muğla Sıtkı Kocman University-Turkey
In this study, we investigate the further properties of quasi irresolute topological groupsdened in [20]. We show that if a group homomorphism f between quasi irresolute topologicalgroups is irresolute at eG, then f is irresolute on G. Later we prove that in a semi-connectedquasi irresolute topological group (G; ; ), if V is any symmetric semi-open neighborhood ofeG, then G is generated by V . Moreover it is proven that a subgroup H of a quasi irresolutetopological group (G; ; ) is semi-discrete if and only if it has a semi-isolated point.
http://jlta.iauctb.ac.ir/article_522724_b241a672faa0e27d440efefec12801f6.pdf
Semi-open set
semi-closed set
irresolute mapping
semi-homeomorphism
quasi
irresolute topological group
eng
Central Tehran Branch. IAU
Journal of Linear and Topological Algebra (JLTA)
2252-0201
2345-5934
2016-06-01
05
01
47
53
522722
F-Closedness in Bitopological Spaces
A Azzam
azzam0911@yahoo.com
1
A Nasef
nasefa50@yahoo.com
2
Assuite University
*Department of Physics and Engineering Mathematics, Faculty of Engineering, KafrEl-Sheikh University, Kafr El-Sheikh, Egypt.
The purpose of this paper is to introduce the concept of pairwise F-closedness in bitopological spaces. This space contains both of pairwise strongcompactness and pairwise S-closedness and contained in pairwise quasi H-closedness. The characteristics and relationships concerning this new class ofspaces with other corresponding types are established. Moreover, several ofits basic and important properties are discussed.
http://jlta.iauctb.ac.ir/article_522722_7448d945db2068090e4678378f07ec94.pdf
pairwise S-closed
pairwise
strongly compact
pairwise quasi H-closed
pairwise almost co-compact
eng
Central Tehran Branch. IAU
Journal of Linear and Topological Algebra (JLTA)
2252-0201
2345-5934
2016-06-01
05
01
55
62
522726
Probability of having n^th-roots and n-centrality of two classes of groups
M Hashemi
m_hashemi@guilan.ac.ir
1
M Polkouei
mikhakp@yahoo.com
2
University of Guilan
University of Guilan
In this paper, we consider the finitely 2-generated groups K(s,l) and G_m as follows:K(s,l) = ;G_m = and find the explicit formulas for the probability of having nth-roots for them. Also weinvestigate integers n for which, these groups are n-central.
http://jlta.iauctb.ac.ir/article_522726_3c193b3446bc6297d55473826577a373.pdf
Nilpotent groups
nth-roots
n-central groups
eng
Central Tehran Branch. IAU
Journal of Linear and Topological Algebra (JLTA)
2252-0201
2345-5934
2016-06-01
05
01
63
66
522731
Recognition by prime graph of the almost simple group PGL(2, 25)
A Mahmoudifar
alimahmoudifar@gmail.com
1
Department of Mathematics, Tehran-North Branch, Islamic Azad University, Tehran, Iran
Throughout this paper, every groups are finite. The prime graph of a group G is denotedby (G). Also G is called recognizable by prime graph if for every finite group H with(H) = (G), we conclude that G = H. Until now, it is proved that if k is an odd numberand p is an odd prime number, then PGL(2; pk) is recognizable by prime graph. So if k iseven, the recognition by prime graph of PGL(2; pk), where p is an odd prime number, is anopen problem. In this paper, we generalize this result and we prove that the almost simplegroup PGL(2; 25) is recognizable by prime graph.
http://jlta.iauctb.ac.ir/article_522731_a8e3e45808ccf2cc905a3c147ea28722.pdf
linear group
almost simple group
prime graph
element order
Frobenius group