eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
1
12
10.22075/ijnaa.2017.1394.1352
2296
Existence of Solutions for some Nonlinear Volterra Integral Equations via Petryshyn's Fixed Point Theorem
Manouchehr Kazemi
univer_ka@yahoo.com
1
Reza Ezzati
ezati@kiau.ac.ir
2
Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran
Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran
In this paper, we study the existence of solutions of some nonlinear Volterra integral equations by using the techniques of measures of noncompactness and the Petryshyn's fixed point theorem in Banach space. We also present some examples of the integral equation to confirm the efficiency of our results.
https://ijnaa.semnan.ac.ir/article_2296_80fd65a54d2078b7f30046da57777be0.pdf
Nonlinear integral equations
Existence of solution
Measures of noncompactness
Petryshyn's fixed point theorem
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
13
25
10.22075/ijnaa.2018.12727.1651
3079
Decomposition of supra soft locally closed sets and supra SLC-continuity
Alaa Abd El-latif
alaa.ali@nbu.edu.sa
1
Mathematics Department, Faculty of Arts and Science, Northern Border University, Rafha, Saudi Arabia; Mathematics Department, Faculty of Education, Ain Shams University, Roxy, 11341, Cairo, Egypt
In this paper, we introduce two different notions of generalized supra soft sets namely supra A--soft sets and supra soft locally closed sets in supra soft topological spaces, which are weak forms of supra open soft sets and discuss their relationships with each other and other supra open soft sets [{<span>it</span> International Journal of Mathematical Trends and Technology} (<span>IJMTT</span>), (2014) Vol. 9 (1):37--56] like supra semi open soft sets, supra <span>pre</span> open soft sets, supra <span>$alpha$</span>--open sets and supra <span>$beta$</span>--open sets. Furthermore, the soft union and intersection of two supra soft locally closed sets have been obtained. We also introduce two different notions of generalized supra soft continuity namely supra soft A--continuous functions and supra <span>SLC</span>--continuous functions. Finally, we obtain <span>decompositions</span> of supra soft continuity: <span>$f_{pu}$</span> is a supra soft A--continuous if it is both supra soft semi-continuous and supra <span>SLC</span>--continuous, and also <span>$f_{pu}$</span> is a supra soft continuous if and only if it is both supra soft <span>pre</span>--continuous and supra <span>SLC</span>--continuous. Several examples are provided to illustrate the behavior of these new classes of supra soft sets and supra soft functions.
https://ijnaa.semnan.ac.ir/article_3079_0ce2a60a6abf1f556e2f1984a2737b0d.pdf
supra soft topological space
supra A--soft sets
supra soft locally closed sets
supra SLC--continuous functions
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
27
40
10.22075/ijnaa.2018.12463.1632
3080
Strong convergence theorem for a class of multiple-sets split variational inequality problems in Hilbert spaces
Chinedu Izuchukwu
izuchukwu_c@yahoo.com
1
School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Durban, South Africa
In this paper, we introduce a new iterative algorithm for approximating a common solution of certain class of multiple-sets split variational inequality problems. The sequence of the proposed iterative algorithm is proved to converge strongly in Hilbert spaces. As application, we obtain some strong convergence results for some classes of multiple-sets split convex<br /> minimization problems.
https://ijnaa.semnan.ac.ir/article_3080_cbdad3d80d8f73b4f043cf6b8daff31e.pdf
Split variational inequality problems
multiple-sets problems, convex minimization problems
strictly pseudocontractive mapping
inverse strongly monotone operators
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
41
53
10.22075/ijnaa.2018.3081
3081
Lie ternary $(sigma,tau,xi)$--derivations on Banach ternary algebras
Razieh Farokhzad Rostami
razieh.farokhzad@yahoo.com
1
Department of Mathematics, Faculty of Basic Sciences and Engineering, Gonbad Kavous University, Gonbad Kavous, Iran
Let <span>$A$</span> be a Banach ternary algebra over a scalar field <span>$Bbb R$</span> or <span>$Bbb C$</span><br /> and <span>$X$</span> be a ternary Banach <span>$A$</span>--module. Let <span>$sigma,tau$</span> and <span>$xi$</span> be linear mappings on <span>$A$</span>, a linear mapping<br /> <span>$D:(A,[~]_A)to (X,[~]_X)$</span> is called a Lie ternary <span>$(sigma,tau,xi)$</span>--derivation, if<br /> <span>$$D([a,b,c])=[[D(a)bc]_X]_{(sigma,tau,xi)}-[[D(c)ba]_X]_{(sigma,tau,xi)}$$</span><br /> for all<br /> <span>$a,b,cin A$</span>, where <span>$[abc]_{(sigma,tau,xi)}=atau(b)xi(c)-sigma(c)tau(b)a$</span> and <span>$[a,b,c]=[abc]_{A}-[cba]_{A}$</span>.<br /> In this paper, we prove the generalized <span>Hyers</span>--<span>Ulam</span>--<span>Rassias</span><br /> stability of Lie ternary <span>$(sigma,tau,xi)$</span>--derivations on Banach<br /> ternary algebras and <span>$C^*$</span>--Lie ternary <span>$(sigma,tau,xi)$</span>--derivations on <span>$C^*$</span>--ternary algebras for the following Euler--Lagrange type additive mapping:<br /> <span>$$sum_{i=1}^{n}ftextbf{(}sum_{j=1}^{n}q(x_i-x_j)textbf{)}</span><br /> <span>+nf(sum_{i=1}^{n}qx_i)=nqsum_{i=1}^{n}f(x_i).$$</span>
https://ijnaa.semnan.ac.ir/article_3081_6486c63f9dfbcbb69da5dc4438109c41.pdf
Banach ternary algebra
Lie ternary $(sigma
tau
xi)$-derivation
Hyers-Ulam-Rassias stability
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
55
68
10.22075/ijnaa.2018.11778.1589
3082
Fekete-Szeg"o problems for analytic functions in the space of logistic sigmoid functions based on quasi-subordination
Murugusundaramoorthy Gangadharan
gmsmoorthy@yahoo.com
1
Sunday Oluwafemi Olatunji
olatunjiso@futa.edu.ng
2
O.A. Fadipe-Joseph
famelov@unilorin.edu.ng
3
Dr. G. Murugusundaramoorthy, Ph.D.
Sr.Professor of Mathematics,
School of Advanced Sciences,
VIT University, Vellore 632 014
India ,www.vit.ac.in
Department of Mathematical Sciences, Federal University of Technology, Akure, Nigeria
Department of Mathematics, University of Ilorin, P.M.B. 1515 Ilorin, Nigeria
In this paper, we define new <span>subclasses</span> <span>${S}^{*}_{q}(alpha,Phi),$</span> <span>${M}_{q}(alpha,Phi)$</span> and <span>${L}_{q}(alpha,Phi)$</span> of analytic functions in the space of logistic <span>sigmoid</span> functions based on quasi--subordination and determine the initial coefficient estimates <span>$|a_2|$</span> and <span>$|a_3|$</span> and also determine the relevant connection to the classical <span>Fekete</span>--<span>Szeg</span><span>"</span>o inequalities. Further, we discuss the improved results for the associated classes involving subordination and <span>majorization</span> results briefly.
https://ijnaa.semnan.ac.ir/article_3082_32c7c0a2eb966732ef665b9730390061.pdf
univalent function
starlike function
quasi--subordination
logistic sigmoid function
Fekete-Szeg"o inequality
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
69
81
10.22075/ijnaa.2018.10724.1521
3083
On Hadamard and Fej'{e}r-Hadamard inequalities for Caputo $small{k}$-fractional derivatives
Ghulam Farid
faridphdsms@hotmail.com
1
Anum Javed
javedanum.38@gmail.com
2
Mathematics Department, COMSATS Institute of Information Technology, Attock Campus, Attock, Pakistan
Mathematics, COMSATS Institute of Information Technology, Attock Campus, Attock, Pakistan
In this paper we will prove certain Hadamard and Fejer-Hadamard inequalities for the functions whose nth derivatives are convex by using Caputo k-fractional derivatives. These results have some relationship with inequalities for Caputo fractional derivatives.
https://ijnaa.semnan.ac.ir/article_3083_b8b7d30ba725674609012789386a7b89.pdf
Convex functions
Hadamard inequality
Fej'{e}r-Hadamard inequality
Caputo fractional derivatives
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
83
98
10.22075/ijnaa.2017.12774.1657
2706
Dynamic system of strategic games
Madjid Eshaghi Gordji
meshaghi@semnan.ac.ir
1
Gholamreza Askari
g.askari@semnan.ac.ir
2
Department of Mathematics, Faculty of Mathematics, Statistics and Computer Sciences, Semnan University, Semnan 35195-363, Iran
Department of Mathematics, Faculty of Mathematics, Statistics and Computer Sciences, Semnan University, Semnan 35195-363, Iran
Maybe an event can't be modeled completely through one game but there is more chance with several games. With emphasis on players' rationality, we present new properties of strategic games, which result in production of other games. Here, a new attitude to modeling will be presented in game theory as dynamic system of strategic games and its some applications such as analysis of the clash between the United States and Iran in Iraq will be provided. In this system with emphasis on players’ rationality, the relationship between strategic games and explicitly the dynamics present in interactions among players will be examined. In addition, we introduce a new game called trickery game. This game shows a good reason for the cunning of some people in everyday life. Cooperation is a hallmark of human society. In many cases, our study provides a mechanism to move towards cooperation between players.
https://ijnaa.semnan.ac.ir/article_2706_4ba202a0aba8f61e2a61ec9d80aa3be9.pdf
Dynamic system
game theory
Second Persian Gulf War
Cooperation
Rationality
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
99
109
10.22075/ijnaa.2017.1451.1367
3085
Influences of magnetic field in viscoelastic fluid
Kashif Abro
kashif.abro@faculty.muet.edu.pk
1
Mirza Baig
baig@neduet.edu.pk
2
Mukruram Hussain
mrmukkarum@yahoo.com
3
Department of Mathematics, NED University of Engineering Technology, Karachi, Pakistan
Department of Mathematics, NED University of Engineering Technology, Karachi, Pakistan
Institute of Space Technology, Karachi, Pakistan
This communication influences on magnetohydrodynamic flow of viscoelastic fluid with magnetic field induced by oscillating plate. General solutions have been found out for velocity and shear stress profiles using mathematical transformations (Integral transforms). The governing partial differential equations have been solved analytically under boundary conditions u(0,t)=A_0 H(t)sinΩt and u(0,t)=A_0 H(t)cosΩt with t≥0. For the sake of simplicity of boundary conditions are verified on the analytical general solutions and similar solutions have been particularized under three limited cases namely (i). Maxwell fluid with out magnetic field if γ≠0,M=0 (ii). Newtonian fluid with magnetic field if γ=0,M≠0 and (iii). Newtonian fluid with out magnetic field if γ=0,M=0. Finally various physical parameters with variations of fluid behaviors are analyzed and depicted graphical illustrations.
https://ijnaa.semnan.ac.ir/article_3085_6452f001f824094059a183987374f4a3.pdf
MHD Maxwell fluid
Laplace and Fourier transforms
rheological Parameters
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
111
115
10.22075/ijnaa.2018.3098
3098
Local higher derivations on C*-algebras are higher derivations
Lila Naranjani
lnaranjani@yahoo.com
1
Mahmoud Hassani
mhassanimath@gmail.com
2
Madjid Mirzavaziri
mirzavaziri@um.ac.ir
3
Department of Mathematics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Department of Mathematics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Department of Pure Mathematics, Ferdowsi University of Mashhad, P.O. Box 1159, Mashhad 91775, Iran
Let $mathfrak{A}$ be a Banach algebra. We say that a sequence ${D_n}_{n=0}^infty$ of continuous operators form $mathfrak{A}$ into $mathfrak{A}$ is a textit{local higher derivation} if to each $ainmathfrak{A}$ there corresponds a continuous higher derivation ${d_{a,n}}_{n=0}^infty$ such that $D_n(a)=d_{a,n}(a)$ for each non-negative integer $n$. We show that if $mathfrak{A}$ is a $C^*$-algebra then each local higher derivation on $mathfrak{A}$ is a higher derivation. We also prove that each local higher derivation on a $C^*$-algebra is automatically continuous.
https://ijnaa.semnan.ac.ir/article_3098_2dd5a1ec2b9eb291b3144ecc1e96595e.pdf
Higher derivation
local higher derivation
Derivation
local derivation
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
117
127
10.22075/ijnaa.2017.11240.1549
3086
Numerical resolution of large deflections in cantilever beams by Bernstein spectral method and a convolution quadrature.
Mohammadkeya khosravi
khosravi@student.tugraz.at
1
Mostafa Jani
mostafa.jani@gmail.com
2
Institute of Applied Mechanics, Graz University of Technology, Technikerstrasse 4, 8010 Graz, Austria
Department of Mathematics, Faculty of Mathematical Sciences and Computer, Kharazmi University, Tehran, Iran
The mathematical modeling of the large deflections for the cantilever beams leads to a nonlinear differential equation with the mixed boundary conditions. Different numerical methods have been implemented by various authors for such problems. In this paper, two novel numerical techniques are investigated for the numerical simulation of the problem. The first is based on a spectral method utilizing modal Bernstein polynomial basis. This gives a polynomial expression for the beam configuration. To do so, a polynomial basis satisfying the boundary conditions is presented by using the properties of the Bernstein polynomials. In the second approach, we first transform the problem into an equivalent Volterra integral equation with a convolution kernel. Then, the second order convolution quadrature method is implemented to discretize the problem along with a finite difference approximation for the Neumann boundary condition on the free end of the beam. Comparison with the experimental data and the existing numerical and semi-analytical methods demonstrate the accuracy and efficiency of the proposed methods. Also, the numerical experiments show the Bernstein-spectral method has a spectral order of accuracy and the convolution quadrature methods equipped with a finite difference discretization gives a second order of accuracy.
https://ijnaa.semnan.ac.ir/article_3086_2fa91707207706c3ca97107695829a94.pdf
Bernstein polynomials
Cantilever beam
Large deflection
Nonlinearity
Convolution quadrature
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
129
145
10.22075/ijnaa.2017.1725.1452
3089
Solutions of initial and boundary value problems via F-contraction mappings in metric-like space
Hemant Kumar Nashine
drhknashine@gmail.com
1
Dhananjay Gopal
gopaldhananjay@yahoo.in
2
Dilip Jain
dilip18pri@gmail.com
3
Ahmed Al-Rawashdeh
ahmedrawashdeh72@yahoo.ca
4
Department of Mathematics, Texas A & M University - Kingsville - 78363-8202, Texas, USA
Department of Applied Mathematics & Humanities, S.V. National Institute of Technology, Surat-395007, Gujarat, India
Department of Applied Mathematics \& Humanities, S.V. National Institute of Technology, Surat-395007, Gujarat, India
Department of Mathematics, United Arab Emirates University, UAE
We present sufficient conditions for the existence of solutions of second-order two-point boundary value and fractional order functional differential equation problems in a space where self distance is not necessarily zero. For this, first we introduce a Ciric type generalized F-contraction and F- Suzuki contraction in a metric-like space and give relevance to fixed point results. To illustrate our results, we give throughout the paper some examples.
https://ijnaa.semnan.ac.ir/article_3089_b5af7b8a4b803b959039333d370da074.pdf
Metric-like space
fixed point
F-contraction
boundary value problem
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
147
159
10.22075/ijnaa.2018.12168.1614
3087
New hybrid method for equilibrium problems and relatively nonexpansive mappings in Banach spaces
Sattar Alizadeh
salizadeh@marandiau.ac.ir
1
Fridoun Moradlou
fridoun.moradlou@gmail.com
2
Department of Mathematics,
Marand Branch, Islamic Azad University,
Marand, Iran
Department of Mathematics, Sahand University of Technology, Tabriz, Iran
In this paper, applying hybrid projection method, a new modified Ishikawa iteration scheme is presented for finding a common element of the solution set of an equilibrium problem and the set of fixed points of relatively nonexpansive mappings in Banach spaces. A numerical example is given and the numerical behaviour of the sequences generated by this algorithm is compared with several existence results in literature to illustrate the usability of obtained results.
https://ijnaa.semnan.ac.ir/article_3087_f22c8d3c0741a826a1347239994559cd.pdf
Equilibrium problems
Fixed point
Hybrid method
Relatively nonexpansive mapping
Weak convergence
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
161
174
10.22075/ijnaa.2018.11642.1581
3090
Efficient elliptic curve cryptosystems
Mohammad Saleh
msaleh@birzeit.edu
1
Kamal Darweesh
kdarweesh.scom@gmail.com
2
Mathematics Department, Birzeit University, P.O. Box 14, Palestine
Applied Mathematics Department, Palestine Technical University--Kadoorie, Tulkarm, Palestine
Elliptic curve cryptosystems (ECC) are new generations of public key cryptosystems that have a smaller key size for the same level of security. The exponentiation on elliptic curve is the most important operation in ECC, so when the ECC is put into practice, the major problem is how to enhance the speed of the exponentiation. It is thus of great interest to develop algorithms for exponentiation, which allow efficient implementations of ECC. In this paper, we improve efficient algorithm for exponentiation on elliptic curves defined over Fp in terms of affine coordinates. The algorithm computes directly from random points P and Q on an elliptic curve, without computing the intermediate points. Moreover, we apply the algorithm to exponentiation on elliptic curves with width-w Mutual Opposite Form (wMOF) and analyze their computational complexity. This algorithm can speed up the wMOF exponentiation of elliptic curves of size 160-bit about (21.7 %) as a result of its implementation with respect to affine coordinates.
https://ijnaa.semnan.ac.ir/article_3090_0f826058d0ae814be01864ee304396ac.pdf
cryptography
elliptic curves
affine coordinates
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
175
193
10.22075/ijnaa.2017.10429.1502
3088
Analysis of fully developed flow and heat transfer through n-sided polygonal ducts with round corners using the Galerkin weighted residual method
Ali Akbar Abbasian Arani
abbasian@kashanu.ac.ir
1
Ali Arefmanesh
arefmanesh@kashanu.ac.ir
2
Amirhossein Niroumand
ahnmechanics@gmail.com
3
Department of Mechanical Engineering, Faculty of Mechanical Engineering, University of Kashan, Kashan 87317-51167, Iran
Department of Mechanical Engineering, Faculty of Mechanical Engineering, University of Kashan, Kashan 87317-51167, Iran
Department of Mechanical Engineering, Faculty of Mechanical Engineering, University of Kashan, Kashan 87317-51167, Iran
The Galerkin weighted residuals method is extended solve the laminar, fully developed flow and heat transfer of Al2O3-water nanofluid inside polygonal ducts with round corners for the constant heat flux and uniform wall temperature boundary conditions. Using the method, semi-analytical, closed-form solutions are obtained for the friction coefficient and the Nusselt number in terms of the radius of the round corners for the triangular, rectangular, hexagonal, and octagonal ducts. The effects of varying the radius of the round corners and the volume fraction of the nanoparticles on the friction coefficient and the Nusselt number are analyzed. The results show that the friction factor and the average Nusselt number increase with increasing the radius of the round corners. The study indicates that the Galerkin weighted residuals method is an accurate and efficient technique to obtain closed-form solutions for the flow and temperature fields in ducts with complex cross sectional shapes.
https://ijnaa.semnan.ac.ir/article_3088_401f00e4daaf23f9740067ab22865a13.pdf
Fully developed flow
Polygonal ducts
Semi-analytic solutions
Galerkin weighted residual method
Nanofluid
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
195
201
10.22075/ijnaa.2018.10861.1529
3092
(JCLR) property and fixed point in non-Archimedean fuzzy metric spaces
Ismat Beg
ibeg@lahoreschool.edu.pk
1
M. Ahmed
mahmed68@yahoo.com
2
N. Nafadi
hatem9007@yahoo.com
3
Lahore School of Economics, Lahore, Pakistan
Department of Mathematics, Faculty of Science, Assiut University, Assiut 71516, Egypt
Department of Mathematics, Faculty of Science, Port Said University, Port Said, Egypt
The aim of the present paper is to introduce the concept of joint common limit range property ((JCLR) property) for single-valued and set-valued maps in non-Archimedean fuzzy metric spaces. We also list some examples to show the difference between (CLR) property and (JCLR) property. Further, we establish common fixed point theorems using implicit relation with integral contractive condition. Several examples to illustrate the significance of our results are given.
https://ijnaa.semnan.ac.ir/article_3092_2f1f766d89f68e23e74e6d57c2a062e0.pdf
Fixed point
(JCLR) property
non-Archimedean fuzzy metric space
hybrid map
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
203
210
10.22075/ijnaa.2018.3093
3093
Endpoints of multi-valued cyclic contraction mappings
Sirous Moradi
sirousmoradi@gmail.com
1
Department of Mathematics, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
Endpoint results are presented for multi-valued cyclic contraction mappings on complete metric spaces (X, d). Our results extend previous results given by Nadler (1969), Daffer-Kaneko (1995), Harandi (2010), Moradi and Kojasteh (2012) and Karapinar (2011).
https://ijnaa.semnan.ac.ir/article_3093_e6242ec1c326609daf7f125e152ae988.pdf
Multi-valued mapping
Generalized weak contraction
Endpoint
Hausdorff metric
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
211
221
10.22075/ijnaa.2018.12016.1601
3094
Fractional Hermite-Hadamard type inequalities for n-times log-convex functions
Nawel Ouanas
ouanasnawel@yahoo.fr
1
Badreddine Meftah
badrimeftah@yahoo.fr
2
Meriem Merad
mrad.meriem@gmail.com
3
D\'{e}partement des Math\'{e}matiques, Facult\'{e} des math% \'{e}matiques, de l'informatique et des sciences de la mati\`{e}re, Universit% \'{e} 8 mai 1945 Guelma, Algeria
Laboratoire des tecommunications, Faculte des Sciences et de la Technologie, University of 8 May 1945 Guelma, P.O. Box 401, 24000 Guelma, Algeria.
D\'{e}partement des Math\'{e}matiques, Facult\'{e} des math% \'{e}matiques, de l'informatique et des sciences de la mati\`{e}re, Universit% \'{e} 8 mai 1945 Guelma, Algeria
In this paper, we establish some Hermite-Hadamard type inequalities for function whose n-th derivatives are logarithmically convex by using Riemann-Liouville integral operator.
https://ijnaa.semnan.ac.ir/article_3094_ca41a655282c9d139a02d65706aa0d5c.pdf
Integral inequality
log-convex function
Hölder inequality
power mean inequality
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
223
234
10.22075/ijnaa.2018.1596.1416
3095
A new approximation method for common fixed points of a finite family of nonexpansive non-self mappings in Banach spaces
Pornsak Yatakoat
p_yatakoat@npu.ac.th
1
Division of Mathematics, Faculty of Sciences, Nakhon Phanom University, Nakhon Phanom 48000, Thailand
In this paper, we introduce a new iterative scheme to approximate a common fixed point for a finite family of nonexpansive non-self mappings. Strong convergence theorems of the proposed iteration in Banach spaces.
https://ijnaa.semnan.ac.ir/article_3095_d8a45ff392ad80350a74ef5cf80f13b7.pdf
nonexpansive non-self mappings
Common xed points
Banach spaces
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
235
245
10.22075/ijnaa.2018.1201.1276
3099
Homomorphism Weak amenability of certain Banach algebras
Hamid Sadeghi
sadeghi@sci.ui.ac.ir
1
Mahmmod Lashkarizadeh
lashkarizadeh@sci.ui.ac.ir
2
Department of Mathematics, Faculty of Science, University of Isfahan, Isfahan, Iran
Department of Mathematics, Faculty of Science, University of Isfahan, Isfahan, Iran
In this paper we introduce the notion of $varphi$-commutativity for a Banach algebra $A$, where $varphi$ is a continuous homomorphism on $A$ and study the concept of $varphi$-weak amenability for $varphi$-commutative Banach algebras. We give an example to show that the class of $varphi$-weakly amenable Banach algebras is larger than that of weakly amenable commutative Banach algebras. We characterize $varphi$-weak amenability of $varphi$-commutative Banach algebras and prove some hereditary properties. Moreover we verify some of the previous available results about commutative weakly amenable Banach algebras, for $varphi$-commutative $varphi$-weakly amenable Banach algebras.
https://ijnaa.semnan.ac.ir/article_3099_3c9686cd0612388fda1d7fbfe656ad40.pdf
Banach algebra
$varphi$-commutative
$varphi$-derivation
$varphi$-weakly amenability
eng
Semnan University
International Journal of Nonlinear Analysis and Applications
2008-6822
2008-6822
2018-08-01
9
1
247
260
10.22075/ijnaa.2018.13610.1708
3096
Higher order multi-point fractional boundary value problems with integral boundary conditions
İsmail Yaslan
iyaslan@pau.edu.tr
1
Mustafa Gunendi
mustafa_87875@hotmail.com
2
Department of Mathematics, Science and Art Faculty, Pamukkale University, Denizli, Turkey
Department of Mathematics, Science and Art Faculty, Pamukkale University, Denizli, Turkey
In this paper, we concerned with positive solutions for higher order m-point nonlinear fractional boundary value problems with integral boundary conditions. We establish the criteria for the existence of at least one, two and three positive solutions for higher order m-point nonlinear fractional boundary value problems with integral boundary conditions by using a result from the theory of fixed point index, Avery-Henderson fixed point theorem and the Legget-Williams fixed point theorem, respectively.
https://ijnaa.semnan.ac.ir/article_3096_c23cec9aa516bada1c5c4819b2c9df69.pdf
Boundary value problems
cone
fixed point theorems
positive solutions
Riemann-Liouville fractional derivative
integral boundary conditions