2016
5
1
0
0
Existence and multiplicity of positive solutions for a class of semilinear elliptic system with nonlinear boundary conditions
2
2
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.
1

1
13


F
Yaghoobi
Department of Mathemetics, College of Science, Hamedan Branch, Islamic Azad University, Hamedan, Iran
Department of Mathemetics, College of Science,
Iran
fm.yaghoobi@gmail.com


J
Shamshiri
Department of Mathematics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Department of Mathematics, Mashhad Branch,
Iran
jamileshamshiri@gmail.com
Critical point
Semilinear elliptic system
Nonlinear boundary value problem
Fibering map
Nehari manifold
Subcategories of topological algebras
2
2
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.
1

15
28


V
Gompa
Troy University
Troy University
Iran
vgompa@jsu.edu
monotopolocial category
topological category
topological functors
universal algebra
topological algebra
Common fixed point results on vector metric spaces
2
2
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 wellknown comparable results in the literature.
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29
39


G
Soleimani Rad
Young Researchers and Elite club, Central Tehran Branch, Islamic Azad University, Tehran, Iran
Young Researchers and Elite club, Central
Iran
gh.soleimani2008@gmail.com


I
Altun
Department of Mathematics, Faculty of Science and Arts, Kirikkale University, 71450 Yahsihan, Kirikkale, Turkey
Department of Mathematics, Faculty of Science
Iran
ialtun@kku.edu.tr
Vector metric space
Riesz space
Common fixed point
Weakly compatible pairs
A note on quasi irresolute topological groups
2
2
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 semiconnectedquasi irresolute topological group (G; ; ), if V is any symmetric semiopen neighborhood ofeG, then G is generated by V . Moreover it is proven that a subgroup H of a quasi irresolutetopological group (G; ; ) is semidiscrete if and only if it has a semiisolated point.
1

41
46


T
Oner
Muğla Sıtkı Kocman UniversityTurkey
Muğla Sıtkı Kocman UniversityTurkey
Iran
onertarkan@gmail.com


A
Ozek
Muğla Sıtkı Kocman UniversityTurkey
Muğla Sıtkı Kocman UniversityTurkey
Iran
alperozek88@gmail.com
Semiopen set
semiclosed set
irresolute mapping
semihomeomorphism
quasi irresolute topological group
FClosedness in Bitopological Spaces
2
2
The purpose of this paper is to introduce the concept of pairwise Fclosedness in bitopological spaces. This space contains both of pairwise strongcompactness and pairwise Sclosedness and contained in pairwise quasi Hclosedness. The characteristics and relationships concerning this new class ofspaces with other corresponding types are established. Moreover, several ofits basic and important properties are discussed.
1

47
53


A
Azzam
Assuite University
Assuite University
Iran
azzam0911@yahoo.com


A
Nasef
*Department of Physics and Engineering Mathematics, Faculty of Engineering, KafrElSheikh University, Kafr ElSheikh, Egypt.
*Department of Physics and Engineering Mathematics
Iran
nasefa50@yahoo.com
pairwise Sclosed
pairwise strongly compact
pairwise quasi Hclosed
pairwise almost cocompact
Probability of having n^throots and ncentrality of two classes of groups
2
2
In this paper, we consider the finitely 2generated groups K(s,l) and G_m as follows:K(s,l) = ;G_m = and find the explicit formulas for the probability of having nthroots for them. Also weinvestigate integers n for which, these groups are ncentral.
1

55
62


M
Hashemi
University of Guilan
University of Guilan
Iran
m_hashemi@guilan.ac.ir


M
Polkouei
University of Guilan
University of Guilan
Iran
mikhakp@yahoo.com
Nilpotent groups
nthroots
ncentral groups
Recognition by prime graph of the almost simple group PGL(2, 25)
2
2
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.
1

63
66


A
Mahmoudifar
Department of Mathematics, TehranNorth Branch, Islamic Azad University, Tehran, Iran
Department of Mathematics, TehranNorth Branch,
Iran
alimahmoudifar@gmail.com
linear group
almost simple group
prime graph
element order
Frobenius group