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 Showing 401 - 538 of 538 Journals sorted alphabetically Journal of Knot Theory and Its Ramifications       (Followers: 1) Journal of Kufa for Mathematics and Computer       (Followers: 1) Journal of Liquid Chromatography & Related Technologies       (Followers: 7) Journal of Logical and Algebraic Methods in Programming Journal of Manufacturing Systems       (Followers: 4) Journal of Mathematical Analysis and Applications       (Followers: 3) Journal of mathematical and computational science       (Followers: 7) Journal of Mathematical and Fundamental Sciences Journal of Mathematical Behavior       (Followers: 2) Journal of Mathematical Chemistry       (Followers: 3) Journal of Mathematical Cryptology       (Followers: 1) Journal of Mathematical Extension       (Followers: 3) Journal of Mathematical Finance       (Followers: 7) Journal of Mathematical Imaging and Vision       (Followers: 6) Journal of Mathematical Logic       (Followers: 2) Journal of Mathematical Modelling and 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3) Nanotechnologies in Russia       (Followers: 1) Natural Resource Modeling New Mathematics and Natural Computation Nonlinear Analysis : Modelling and Control Nonlinear Analysis : Theory, Methods & Applications       (Followers: 1) Nonlinear Analysis: Hybrid Systems Nonlinear Analysis: Real World Applications       (Followers: 2) Nonlinear Differential Equations and Applications NoDEA Nonlinear Engineering Nonlinear Oscillations       (Followers: 1) North Carolina Journal of Mathematics and Statistics North-Holland Mathematical Library       (Followers: 1) North-Holland Mathematics Studies North-Holland Series in Applied Mathematics and Mechanics       (Followers: 1) Note di Matematica NTM Zeitschrift für Geschichte der Wissenschaften, Technik und Medizin       (Followers: 4) Numeracy : Advancing Education in Quantitative Literacy Numerical Analysis and Applications       (Followers: 1) Numerical Functional Analysis and Optimization       (Followers: 2) Numerical Linear Algebra with Applications       (Followers: 4) Numerical Mathematics : Theory, Methods and Applications Numerische Mathematik Open Journal of Discrete Mathematics       (Followers: 5) Open Journal of Modelling and Simulation       (Followers: 1) Open Mathematics       (Followers: 1) Operations Research Letters       (Followers: 11) Optimization Letters       (Followers: 2) Optimization Methods and Software       (Followers: 7) Opuscula Mathematica       (Followers: 108) Order ORiON P-Adic Numbers, Ultrametric Analysis, and Applications PAMM : Proceedings in Applied Mathematics and Mechanics       (Followers: 1) Parallel Processing Letters       (Followers: 3) Periodica Mathematica Hungarica       (Followers: 1) Perspectivas da Educação Matemática Petroleum Science       (Followers: 1) Philosophia Mathematica       (Followers: 1) Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences       (Followers: 6) PNA. Revista de Investigación en Didáctica de la Matemática Polar Science       (Followers: 3) Positivity Prague Bulletin of Mathematical Linguistics, The Press Start Prime Number PRIMS Probability in the Engineering and Informational Sciences       (Followers: 1) Problemy Peredachi Informatsii Proceedings - Mathematical Sciences       (Followers: 5) Proceedings of the American Mathematical Society, Series B       (Followers: 1) Proceedings of the Edinburgh Mathematical Society Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics       (Followers: 2) Proceedings of the Latvian Academy of Sciences. Section B: Natural, Exact and Applied Sciences Proceedings of the London Mathematical Society       (Followers: 3)

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Similar Journals
 Journal of Mathematical ExtensionNumber of Followers: 3     Open Access journal ISSN (Print) 1735-8299 Published by Islamic Azad University  [18 journals]
• Announcement

• Authors: Journal of Mathematical Extension
Abstract: This Special Issue will be based on papers from International Conference on Mathematics:An Istanbul Meeting for World Mathematicians (http://www.icomath.com) that will be held in Istanbul, Turkey, July 3-6, 2018. This conference is concerned with the theory and the applications of mathematical sciences. All topics related to pure and applied mathematics are in the scope of the conference. We aim to bring together mathematicians in Istanbul from all around the world and provide mathematicians to discuss recent developments in both pure and applied mathematics and to develop a professional knowledge exchange platform between mathematicians.Potential authors are strongly advised to submit original papers that report substantial enhancements with respect to the short papers including further results and should acknowledge and cite the conference paper where appropriate.
Authors also must obey with the instructions for authors and quality requirements of Journal of Mathematical Extension. All selected papers will be subject to a refereeing process according to the journal standards.  Full papers must be submitted through Journal's online submission system. While submitting, authors need to make sure that they specify the paper is a contribution for ‘‘Vol 12. Special Issue for ICOM 2018’’ in Journal Section.The submitted papers will undergo peer review process before they can be accepted. The deadline for submission is August 15, 2018. Notification of acceptance will be communicated as we progress with the review process.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Announcement

• Authors: Journal of Mathematical Extension
Abstract: This Special Issue will be based on papers from International Conference on Mathematics:An Istanbul Meeting for World Mathematicians (http://www.icomath.com) that will be held in Istanbul, Turkey, July 3-6, 2018. This conference is concerned with the theory and the applications of mathematical sciences. All topics related to pure and applied mathematics are in the scope of the conference. We aim to bring together mathematicians in Istanbul from all around the world and provide mathematicians to discuss recent developments in both pure and applied mathematics and to develop a professional knowledge exchange platform between mathematicians.Potential authors are strongly advised to submit original papers that report substantial enhancements with respect to the short papers including further results and should acknowledge and cite the conference paper where appropriate.
Authors also must obey with the instructions for authors and quality requirements of Journal of Mathematical Extension. All selected papers will be subject to a refereeing process according to the journal standards.  Full papers must be submitted through Journal's online submission system. While submitting, authors need to make sure that they specify the paper is a contribution for ‘‘Vol 12. Special Issue for ICOM 2018’’ in Journal Section.The submitted papers will undergo peer review process before they can be accepted. The deadline for submission is August 15, 2018. Notification of acceptance will be communicated as we progress with the review process.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Convergence of Euler-Maruyama Method for Stochastic Differential Equations
Driven by alpha-stable Levy Motion

• Authors: Bahram Tarami, Mohsen Avaji
Abstract: In the literature, the Euler-Maruyama (EM) method for approximation purposes of stochastic differential Equations (SDE) driven by alph-stable Levy motions is reported. Convergence in probability of this method was proven but it is surrounded by some ambiguities. To accomplish the method without ambiguities, this article has derived convergence in probability of numerical EM method based on diffusion given by semimartingales for SDEs driven by alpha-stable processes. Some examples are provided, their numerical solution are obtained and theoretical results are reconfirmed. The  adopted method could be applied to other subclasses of semimartingales.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Convergence of Euler-Maruyama Method for Stochastic Differential Equations
Driven by alpha-stable Levy Motion

• Authors: Bahram Tarami, Mohsen Avaji
Abstract: In the literature, the Euler-Maruyama (EM) method for approximation purposes of stochastic differential Equations (SDE) driven by alph-stable Levy motions is reported. Convergence in probability of this method was proven but it is surrounded by some ambiguities. To accomplish the method without ambiguities, this article has derived convergence in probability of numerical EM method based on diffusion given by semimartingales for SDEs driven by alpha-stable processes. Some examples are provided, their numerical solution are obtained and theoretical results are reconfirmed. The  adopted method could be applied to other subclasses of semimartingales.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• The Odd Log-Logistic Poisson-G Family of Distributions

Abstract: We propose a new class of continuous distributions with two extra shape parameters named the Odd Log-Logistic Poisson-G family. Some of its mathematical properties including moments, quantile and generating functions and order statistics are obtained. We estimate the model parameters by the maximum likelihood method and present a Monte Carlo simulation study. The importance of the proposed family is demonstrated by means of three real data applications. Empirical results indicate that proposed family provides better fits than other well-known classes of distributions in real applications.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• The Odd Log-Logistic Poisson-G Family of Distributions

Abstract: We propose a new class of continuous distributions with two extra shape parameters named the Odd Log-Logistic Poisson-G family. Some of its mathematical properties including moments, quantile and generating functions and order statistics are obtained. We estimate the model parameters by the maximum likelihood method and present a Monte Carlo simulation study. The importance of the proposed family is demonstrated by means of three real data applications. Empirical results indicate that proposed family provides better fits than other well-known classes of distributions in real applications.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• On the q-parametric Stancu type Dunkl generalization of the
Kantorovich-Szasz-Mirakjan operators

• Authors: Mohammad Mursaleen, Taqseer Khan, Md Nasiruzzaman
Abstract: In this paper we construct the Stancu type q-Kantrovich-Szasz-Mirakjan operators generated by Dunkl generalization of the exponential function. We obtain some approximation results using the Korovkin approximation theorem for these operators. We also study convergence properties by using the modulus of continuity and the rate of convergence for functions belonging to the Lipschitz class. Furthermore, we obtain the rate of convergence in terms of the classical, the second order, and the weighted modulus of continuity.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• On the q-parametric Stancu type Dunkl generalization of the
Kantorovich-Szasz-Mirakjan operators

• Authors: Mohammad Mursaleen, Taqseer Khan, Md Nasiruzzaman
Abstract: In this paper we construct the Stancu type q-Kantrovich-Szasz-Mirakjan operators generated by Dunkl generalization of the exponential function. We obtain some approximation results using the Korovkin approximation theorem for these operators. We also study convergence properties by using the modulus of continuity and the rate of convergence for functions belonging to the Lipschitz class. Furthermore, we obtain the rate of convergence in terms of the classical, the second order, and the weighted modulus of continuity.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• L-LIMITED AND ALMOST L-LIMITED SETS IN DUAL BANACH LATTICES

Abstract: Following the concept of L-limited sets in dual Banach spacesintroduced by Salimi and Moshtaghioun, we introduce the concept of almostL-limited sets in dual Banach lattices and then by a class of operators onBanach lattices, so called disjoint limited completely continuous operators, wecharacterize Banach lattices in which almost L-limited subsets of their dual,coincide with L-limited sets.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• L-LIMITED AND ALMOST L-LIMITED SETS IN DUAL BANACH LATTICES

Abstract: Following the concept of L-limited sets in dual Banach spacesintroduced by Salimi and Moshtaghioun, we introduce the concept of almostL-limited sets in dual Banach lattices and then by a class of operators onBanach lattices, so called disjoint limited completely continuous operators, wecharacterize Banach lattices in which almost L-limited subsets of their dual,coincide with L-limited sets.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• $H_v$-Normal subgroups and $H_v$-quotient groups

Abstract: ‎A larger class of algebraic hyperstructures satisfying the group-like axioms is the class of $H_v$-groups‎. ‎In this paper‎, ‎without any condition and in general‎, ‎we define the $H_v$-normal subgroup and the $H_v$-quotient group of a $H_v$-group‎. ‎We introduce the fundamental equivalence relation of a $H_v$-quotient group and prove the first and third isomorphism theorems for $H_v$-groups‎.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• $H_v$-Normal subgroups and $H_v$-quotient groups

Abstract: ‎A larger class of algebraic hyperstructures satisfying the group-like axioms is the class of $H_v$-groups‎. ‎In this paper‎, ‎without any condition and in general‎, ‎we define the $H_v$-normal subgroup and the $H_v$-quotient group of a $H_v$-group‎. ‎We introduce the fundamental equivalence relation of a $H_v$-quotient group and prove the first and third isomorphism theorems for $H_v$-groups‎.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Observational Modeling of Logical Entropy of Dynamical Systems with local
approach

• Authors: Sima Sargazi, Abolfazl Ebrahimzadeh, Zahra Eslami Giski
Abstract: In this paper, we introduce a new kind of the logical entropy through a local relative approach. The notions of local relative logical entropy and local relative conditional logical entropy from an observer's viewpoint on local relative probability measure space are introduced and some of their ergodic properties are studied. Some properties of the local relative logical entropy of independent partitions are investigated and the concavity property for the local relative logical entropy has been proved. We show that, the basic properties of Shannon entropy of partitions on probability measure spaces, are established for the case of the local relative logical entropy. So the suggested measures can be used besides of the Shannon entropy of partitions. Using the concept of the local relative logical entropy of partitions, we define the local relative logical entropy of a dynamical system and present some of its properties. Finally, it is shown that the local relative logical entropy of dynamical systems is invariant under isomorphism.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Observational Modeling of Logical Entropy of Dynamical Systems with local
approach

• Authors: Sima Sargazi, Abolfazl Ebrahimzadeh, Zahra Eslami Giski
Abstract: In this paper, we introduce a new kind of the logical entropy through a local relative approach. The notions of local relative logical entropy and local relative conditional logical entropy from an observer's viewpoint on local relative probability measure space are introduced and some of their ergodic properties are studied. Some properties of the local relative logical entropy of independent partitions are investigated and the concavity property for the local relative logical entropy has been proved. We show that, the basic properties of Shannon entropy of partitions on probability measure spaces, are established for the case of the local relative logical entropy. So the suggested measures can be used besides of the Shannon entropy of partitions. Using the concept of the local relative logical entropy of partitions, we define the local relative logical entropy of a dynamical system and present some of its properties. Finally, it is shown that the local relative logical entropy of dynamical systems is invariant under isomorphism.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Weak amenability of semigroup algebras modulo an ideal

• Authors: Ahmad Mehrabi, Hamidreza Rahimi
Abstract: The main purpose of this paper is to investigate weak amenability of semigroup algebras. We relate this to a new notion of weak amenability modulo an ideal of Banach algebras. As an important result, we show that $l^1(S)$ is weakly amenable modulo $I_{\sigma}$, where $I_{\sigma}$ is the corresponding ideal of the group congruence $\sigma$.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Weak amenability of semigroup algebras modulo an ideal

• Authors: Ahmad Mehrabi, Hamidreza Rahimi
Abstract: The main purpose of this paper is to investigate weak amenability of semigroup algebras. We relate this to a new notion of weak amenability modulo an ideal of Banach algebras. As an important result, we show that $l^1(S)$ is weakly amenable modulo $I_{\sigma}$, where $I_{\sigma}$ is the corresponding ideal of the group congruence $\sigma$.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Shifted Chebyshev polynomial method for solving systems of linear and
nonlinear Fredholm-Volterra integro-differential equations

• Authors: Esmail Hesameddini, Mohsen Riahi
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• A new modified trust region algorithm for solving unconstrained
optimization problems

Abstract: Iterative methods for optimization can be classified into two categories:
line search methods and trust region methods.
In this paper, we propose a modified regularized Newton method without line search for minimizing nonconvex
functions whose Hessian matrix may be singular.
The proposed method is proved to converge globally if the Gradient and Hessian of the objective
function are Lipschitz continuous.
Moreover, we report numerical results that show that the proposed algorithm is competitive with the existing methods.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• New Subclass of Univalent Function involving the Modified Sigmoid Function
using Subordination Principle

Abstract: In this work, a new subclass of function, $G_\lambda(n, \mu, \lambda):n \in N_0, \mu \geq 1, \\0 \leq \lambda \leq 1$, was defined using the S\v{a}l\v{a}gean differential operator involving the modified sigmoid function and subordination principle. The initial coefficient bounds and the Fekete-Szego functional of this class were obtained.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Some new generalized Hermite-Hadamard inequalities for generalized convex
functions and applications

• Authors: Hüseyin BUDAK, Mehmet Zeki SARIKAYA
Abstract: In this paper, some new inequality for generalized convex functions are obtained. Some applications for some generalized special means are also given.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Numerical range of simple graphs and some bounds for their eigenvalues

• Authors: Maliheh Tajarrod, Tahereh Sistani
Abstract: The numerical range of a simple graph G, named F(G), is the numerical
range of its adjacency matrix A(G). The main purpose of this paper was
to approximate F(G). Then, using this approximation, bounds for the largest
and the smallest eigenvalues of G were proposed. In fact, lower bounds for the largest eigenvalues of G were presented in terms of disjoint induced subgraphs of G and the numerical range of the square of A(G).
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• New fixed point results under generalized $c$-distance in $tvs$-cone
$b$-metric spaces with an application to systems of Fredholm integral
equations

Abstract: In this paper, we define a generalized $c$-distance in $tvs$-cone$b$-metric spaces and introduce some results about its properties.Then we prove some new fixed point and common fixed point results(with the underlying cone which is not normal). Respective resultsconcerning mappings without periodic points are also deduced. Someexamples are presented to validate our obtained results. Anapplication to system of Fredholm integral equations is presented.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Image Zooming Using Barycentric Rational Interpolation

• Authors: Ghasem Barid Loghmani, Ali Mohammad Esmaili Zaini, Ali Mohammad Latif
Abstract:  Image zooming is one of the important issues of image processing that maintains the quality and structure of image. Zooming an image necessitates placing the extra pixels in the image data. Moreover, adding the data to the image must be consistent with the texture in the image in order to prevent artificial blocks. In this study, the required pixels are estimated using barycentric rational interpolation. The proposed method is a non-linear one which can preserve the edges and reduces the blur and block artifacts on the zoomed image. Numerical results are presented using PSNR and SSIM fidelity measures and they are compared to some other methods. The average PSNR of the original image and image zooming was 33.08 which can prove that image zooming is very similar to the original image. The experimental results revealed that the proposed method had a better performance compared to other methods and could provide good image quality.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• New operators for fractional integration theory with some applications

• Authors: Mehmet Zeki Sarikaya, Mohamed BEZZIOU, Zoubir DAHMANI
Abstract: In this paper, we introduce new operators on fractional integration that we call (k; s; h)-Riemann-Liouville, (k; s)-Hadamard and (k; s; h)-Hadamard fractional integral operators. We provesome of their properties. Then, using our proposed approaches, we establish some applications oninequalities.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• The arithmetical rank of k-complete ideals

• Authors: Luis A. Dupont, Daniel Mendoza, Miriam Rodríguez
Abstract: We introduce the notions of algebraic and arithmetic derivation. As an application, we use the combinatorial decomposition of an ideal to provide a constructive method to find the algebraic invariants, as the arithmetical rank,  for a family of squarefree monomial ideals, the $k$--complete ideals $I_k^n,$ also known as squarefree Veronese ideals of degree $k$.
PubDate: 2018-06-29
Issue No: Vol. 12 (2018)

• Weak Shadowing as a Generic Property for IFS's

• Authors: Mehdi Fatehi Nia
Abstract: In this paper we consider shadowing and weak shadowing properties for iterated function systems IFS and give some results on these concepts. At first, a sufficient condition for shadowing property is given and by this result we present two IFS which have the shadowing property. It is proved that every uniformly expanding as well as every uniformly contracting  IFS has the weak shadowing property.  By an example we show that in  IFS's   shadowing property does not implies  weak shadowing property. Finally  we have the main result of the paper and prove  that the weak shadowing  is a generic property in the set of all IFS's.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• Weak Shadowing as a Generic Property for IFS's

• Authors: Mehdi Fatehi Nia
Abstract: In this paper we consider shadowing and weak shadowing properties for iterated function systems IFS and give some results on these concepts. At first, a sufficient condition for shadowing property is given and by this result we present two IFS which have the shadowing property. It is proved that every uniformly expanding as well as every uniformly contracting  IFS has the weak shadowing property.  By an example we show that in  IFS's   shadowing property does not implies  weak shadowing property. Finally  we have the main result of the paper and prove  that the weak shadowing  is a generic property in the set of all IFS's.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• Solution of Lane-Emden type equation using hybrid third kind Chebyshev

• Authors: Reza Ezzati, K Maleknejad, Reza Jafari
Abstract: In this paper, rst, a numerical method is presented for solving generalized linear andnonlinear Lane-Emden type equations. The operational matrix of derivative is obtainedby introducing hybrid third kind Chebyshev polynomials and Block-pulse functions. Thismatrix with the tau method is then utilized to transform the dierential equation into asystem of algebraic equations. Finally, the convergence analysis is investigated and theeciency of the proposed method is indicated by some numerical examples.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• Solution of Lane-Emden type equation using hybrid third kind Chebyshev

• Authors: Reza Ezzati, K Maleknejad, Reza Jafari
Abstract: In this paper, rst, a numerical method is presented for solving generalized linear andnonlinear Lane-Emden type equations. The operational matrix of derivative is obtainedby introducing hybrid third kind Chebyshev polynomials and Block-pulse functions. Thismatrix with the tau method is then utilized to transform the dierential equation into asystem of algebraic equations. Finally, the convergence analysis is investigated and theeciency of the proposed method is indicated by some numerical examples.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• Using the Outer Approximation Algorithm For Generating All Efficient
Extreme Points of DEA

Abstract: In this paper, we propose a multiple objective linear programing (MOLP) problem, whose feasible region is same of the production possibility set of the data envelopment analysis (DEA) with variable return to scale (VRS).We show that efficient points of the MOLP in outcome space are corresponding to efficient units of DEA and vice versa. We use the outer approximation algorithm for generating all extreme efficient points in the outcome set of the MOLP problem, then, we obtain the extreme efficient units of the VRS DEA. Because it works in the outcome set rather than in the decision set of the MOLP problem, the outer approximation algorithm has several advantages over decision set-based algorithms. It is also relatively easy to implement. We also consider some extensions.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• Using the Outer Approximation Algorithm For Generating All Efficient
Extreme Points of DEA

Abstract: In this paper, we propose a multiple objective linear programing (MOLP) problem, whose feasible region is same of the production possibility set of the data envelopment analysis (DEA) with variable return to scale (VRS).We show that efficient points of the MOLP in outcome space are corresponding to efficient units of DEA and vice versa. We use the outer approximation algorithm for generating all extreme efficient points in the outcome set of the MOLP problem, then, we obtain the extreme efficient units of the VRS DEA. Because it works in the outcome set rather than in the decision set of the MOLP problem, the outer approximation algorithm has several advantages over decision set-based algorithms. It is also relatively easy to implement. We also consider some extensions.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• J-Armendariz rings

• Authors: Maboubeh Sanaei, Shervin Sahebi, Hamid H. S. Javadi
Abstract: We introduce the notion of J-Armendariz rings, which are
a generalization of weak Armendariz rings and investigate their proper-
ties. We show that local rings are J-Armendariz. Also, we prove that a
ring R is J-Armendariz if and only if R[[x]] is J-Armendariz. It is shown
that the J-Armendariz property is not Morita invariant. As a specic
case, we show that the class of J-Armendariz rings lies properly between
the class of one-sided quasi-duo rings and the class of perspective rings.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• J-Armendariz rings

• Authors: Maboubeh Sanaei, Shervin Sahebi, Hamid H. S. Javadi
Abstract: We introduce the notion of J-Armendariz rings, which are
a generalization of weak Armendariz rings and investigate their proper-
ties. We show that local rings are J-Armendariz. Also, we prove that a
ring R is J-Armendariz if and only if R[[x]] is J-Armendariz. It is shown
that the J-Armendariz property is not Morita invariant. As a specic
case, we show that the class of J-Armendariz rings lies properly between
the class of one-sided quasi-duo rings and the class of perspective rings.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• The Construction of Fraction Gamma Rings and Local Gamma Rings by Using
Commutative Gamma Rings

• Authors: Zohre Seyed Tabatabaee, Tahereh Roodbarylor
Abstract: ‎One of the first constructions of algebra is the quotient field of a commutative integral domain,constructed as a set of fractions‎, ‎which can lead to a very useful technique in commutative ring theory‎. ‎In this article the researchers considered rings of fractions for gamma rings and some new characterizations were developed in gamma rings of fractions‎. ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• The Construction of Fraction Gamma Rings and Local Gamma Rings by Using
Commutative Gamma Rings

• Authors: Zohre Seyed Tabatabaee, Tahereh Roodbarylor
Abstract: ‎One of the first constructions of algebra is the quotient field of a commutative integral domain,constructed as a set of fractions‎, ‎which can lead to a very useful technique in commutative ring theory‎. ‎In this article the researchers considered rings of fractions for gamma rings and some new characterizations were developed in gamma rings of fractions‎. ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• REFINING JENSEN’S INTEGRAL INEQUALITY FOR DIVISIONS OF MEASURABLE
SPACE

• Authors: S. S. Dragomir
Abstract: In this paper we establish a refinement and some reverses forJensen’s inequality for the general Lebesgue integral on divisions of measurablespace. Applications for discrete inequalities and weighted means of positivenumbers are also given. Some examples related to Hermite-Hadamard inequal-ity for convex functions are provided as well.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• REFINING JENSEN’S INTEGRAL INEQUALITY FOR DIVISIONS OF MEASURABLE
SPACE

• Authors: S. S. Dragomir
Abstract: In this paper we establish a refinement and some reverses forJensen’s inequality for the general Lebesgue integral on divisions of measurablespace. Applications for discrete inequalities and weighted means of positivenumbers are also given. Some examples related to Hermite-Hadamard inequal-ity for convex functions are provided as well.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• A New Perspective via Fractional Calculus for the Radial Schrödinger
Equation

• Authors: Okkes Ozturk
Abstract: Differintegral theorems are applied to solve some ordinary differential equations and fractional differential equations. By using these theorems, we obtain different results in the fractional differintegral forms. In this paper, we aim to solve the radial Schrödinger equation under the potential $V(r)=H/r^{2}-K/r+Lr^{\kappa}$ in $\kappa=0,-1,-2$ cases. We also obtain the solutions in the hypergeometric form.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• A New Perspective via Fractional Calculus for the Radial Schrödinger
Equation

• Authors: Okkes Ozturk
Abstract: Differintegral theorems are applied to solve some ordinary differential equations and fractional differential equations. By using these theorems, we obtain different results in the fractional differintegral forms. In this paper, we aim to solve the radial Schrödinger equation under the potential $V(r)=H/r^{2}-K/r+Lr^{\kappa}$ in $\kappa=0,-1,-2$ cases. We also obtain the solutions in the hypergeometric form.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• New results on monotonicity

• Authors: Zahra Sadat Mirsaney, Mahboubeh Rezaie
Abstract: The purpose of this paper is to show that under reasonable assumptions Debrunner and Flor Theorem can be extended to arbitrary teta-monotone operators.This generalization provides some tools for further analysis of the teta-monotone multivalued operators, which allow us for establishing some key facts related to domains and ranges of teta-maximal monotone operators.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

• New results on monotonicity

• Authors: Zahra Sadat Mirsaney, Mahboubeh Rezaie
Abstract: The purpose of this paper is to show that under reasonable assumptions Debrunner and Flor Theorem can be extended to arbitrary teta-monotone operators.This generalization provides some tools for further analysis of the teta-monotone multivalued operators, which allow us for establishing some key facts related to domains and ranges of teta-maximal monotone operators.
PubDate: 2018-02-27
Issue No: Vol. 12 (2018)

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Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327

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