Subjects -> MATHEMATICS (Total: 1013 journals)     - APPLIED MATHEMATICS (92 journals)    - GEOMETRY AND TOPOLOGY (23 journals)    - MATHEMATICS (714 journals)    - MATHEMATICS (GENERAL) (45 journals)    - NUMERICAL ANALYSIS (26 journals)    - PROBABILITIES AND MATH STATISTICS (113 journals) MATHEMATICS (714 journals)            First | 1 2 3 4 | Last
 Showing 201 - 400 of 538 Journals sorted alphabetically Educação Matemática Debate Edumatica : Jurnal Pendidikan Matematika EduMatSains Electronic Journal of Differential Equations Electronic Journal of Graph Theory and Applications       (Followers: 3) Em Teia : Revista de Educação Matemática e Tecnológica Iberoamericana Emergent Scientist Energy for Sustainable Development       (Followers: 13) Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas Entropy       (Followers: 5) ESAIM: Control Optimisation and Calculus of Variations       (Followers: 2) Euclid European Journal of Applied Mathematics European Journal of Combinatorics       (Followers: 3) European Journal of Mathematics       (Followers: 1) European Scientific Journal       (Followers: 1) Examples and Counterexamples Experimental Mathematics       (Followers: 5) Expositiones Mathematicae       (Followers: 2) Extracta Mathematicae Facta Universitatis, Series : Mathematics and Informatics Finite Fields and Their Applications       (Followers: 5) Fixed Point Theory and Applications Formalized Mathematics Forum of Mathematics, Pi       (Followers: 1) Forum of Mathematics, Sigma       (Followers: 1) Foundations and Trends® in Econometrics       (Followers: 6) Foundations and Trends® in Networking       (Followers: 1) Foundations and Trends® in Stochastic Systems       (Followers: 1) Foundations and Trends® in Theoretical Computer Science       (Followers: 1) Foundations of Computational Mathematics Fractal and Fractional Fractals       (Followers: 1) Frontiers of Mathematics in China Fuel Cells Bulletin       (Followers: 9) Functional Analysis and Other Mathematics       (Followers: 4) Fundamental Journal of Mathematics and Applications Funktsional'nyi Analiz i ego Prilozheniya Fuzzy Optimization and Decision Making       (Followers: 8) Game Theory       (Followers: 2) Games       (Followers: 4) Games and Economic Behavior       (Followers: 25) Gamm - Mitteilungen GANIT : Journal of Bangladesh Mathematical Society GEM - International Journal on Geomathematics       (Followers: 1) General Mathematics Glasgow Mathematical Journal Global Journal of Mathematical Sciences Graphs and Combinatorics       (Followers: 4) Grey Systems : Theory and Application Groups, Complexity, Cryptology       (Followers: 2) GSTF Journal of Mathematics, Statistics and Operations Research       (Followers: 1) Historia Mathematica Historical Methods: A Journal of Quantitative and Interdisciplinary History       (Followers: 28) IMA Journal of Applied Mathematics IMA Journal of Numerical Analysis - advance access ImmunoInformatics       (Followers: 1) Indagationes Mathematicae Indian Journal of Pure and Applied Mathematics       (Followers: 4) Indonesian Journal of Combinatorics Indonesian Journal of Science and Mathematics Education       (Followers: 1) Infinite Dimensional Analysis, Quantum Probability and Related Topics       (Followers: 1) Infinity Jurnal Matematika dan Aplikasinya       (Followers: 3) Information and Inference InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan InfraMatics Insight - Non-Destructive Testing and Condition Monitoring       (Followers: 110) International Electronic Journal of Algebra International Journal for Numerical Methods in Engineering       (Followers: 35) International Journal for Numerical Methods in Fluids       (Followers: 19) International Journal of Advanced Mathematical Sciences International Journal of Advanced Mechatronic Systems       (Followers: 2) International Journal of Advanced Research in Mathematics International Journal of Advances in Engineering Sciences and Applied Mathematics       (Followers: 10) International Journal of Algebra and Computation       (Followers: 1) International Journal of Algebra and Statistics       (Followers: 3) International Journal of Applied and Computational Mathematics International Journal of Applied Mathematical Research       (Followers: 1) International Journal of Applied Mathematics and Computer Science       (Followers: 7) International Journal of Applied Mechanics       (Followers: 8) International Journal of Applied Nonlinear Science International Journal of Autonomic Computing       (Followers: 1) International Journal of Bifurcation and Chaos       (Followers: 4) International Journal of Biomathematics       (Followers: 2) International Journal of Computational Complexity and Intelligent Algorithms International Journal of Computational Economics and Econometrics       (Followers: 6) International Journal of Computational Geometry and Applications       (Followers: 2) International Journal of Computational Intelligence and Applications       (Followers: 2) International Journal of Computational Methods       (Followers: 4) International Journal of Computer Processing Of Languages       (Followers: 1) International Journal of Control, Automation and Systems       (Followers: 15) International Journal of Dynamical Systems and Differential Equations       (Followers: 1) International Journal of Economics and Accounting       (Followers: 1) International Journal of Foundations of Computer Science       (Followers: 3) International Journal of Fuzzy Computation and Modelling       (Followers: 2) International Journal of Image and Graphics       (Followers: 5) International Journal of Industrial Electronics and Drives       (Followers: 3) International Journal of Low-Carbon Technologies       (Followers: 1) International Journal of Mathematical Education in Science and Technology       (Followers: 9) International Journal of Mathematical Modelling & Computations       (Followers: 3) International Journal of Mathematical Modelling and Numerical Optimisation       (Followers: 5) International Journal of Mathematical Sciences and Computing International Journal of Mathematics       (Followers: 4) International Journal of Mathematics & Computation International Journal of Mathematics and Mathematical Sciences       (Followers: 4) International Journal of Mathematics in Operational Research       (Followers: 2) International Journal of Metaheuristics       (Followers: 1) International Journal of Modelling in Operations Management       (Followers: 2) International Journal of Modern Nonlinear Theory and Application       (Followers: 1) International Journal of Number Theory       (Followers: 1) International Journal of Partial Differential Equations       (Followers: 2) International Journal of Polymer Science       (Followers: 25) International Journal of Pure Mathematical Sciences International Journal of Reliability, Quality and Safety Engineering       (Followers: 14) International Journal of Research in Undergraduate Mathematics Education       (Followers: 4) International Journal of Sediment Research       (Followers: 2) International Journal of Shape Modeling       (Followers: 1) International Journal of Theoretical and Mathematical Physics       (Followers: 13) International Journal of Trends in Mathematics Education Research       (Followers: 4) International Journal of Ultra Wideband Communications and Systems International Journal of Wavelets, Multiresolution and Information Processing International Journal on Artificial Intelligence Tools       (Followers: 9) International Mathematics Research Notices       (Followers: 1) Internet Mathematics       (Followers: 1) Inventiones mathematicae       (Followers: 2) Inverse Problems in Science and Engineering       (Followers: 3) Investigations in Mathematics Learning Iranian Journal of Optimization       (Followers: 2) Israel Journal of Mathematics Ithaca : Viaggio nella Scienza ITM Web of Conferences Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya Jahresbericht der Deutschen Mathematiker-Vereinigung Japan Journal of Industrial and Applied Mathematics Japanese Journal of Mathematics JIPM (Jurnal Ilmiah Pendidikan Matematika) JMPM : Jurnal Matematika dan Pendidikan Matematika JOHME : Journal of Holistic Mathematics Education       (Followers: 2) Johnson Matthey Technology Review Jornal Internacional de Estudos em Educação Matemática Journal d'Analyse Mathématique       (Followers: 2) Journal de Mathématiques Pures et Appliquées       (Followers: 3) Journal for Research in Mathematics Education       (Followers: 28) Journal für Mathematik-Didaktik Journal of Advanced Mathematics and Applications       (Followers: 1) Journal of Algebra       (Followers: 3) Journal of Algebra and Its Applications       (Followers: 3) Journal of Algebraic Combinatorics       (Followers: 3) Journal of Algorithms & Computational Technology Journal of Applied Mathematics       (Followers: 3) Journal of Applied Mathematics and Computing Journal of Applied Mathematics, Statistics and Informatics       (Followers: 1) Journal of Artificial Intelligence and Data Mining       (Followers: 10) Journal of Classification       (Followers: 5) Journal of Combinatorial Designs       (Followers: 4) Journal of Combinatorial Optimization       (Followers: 7) Journal of Combinatorial Theory, Series A       (Followers: 5) Journal of Combinatorial Theory, Series B       (Followers: 3) Journal of Complex Analysis       (Followers: 2) Journal of Complex Networks       (Followers: 1) Journal of Complexity       (Followers: 6) Journal of Computational and Applied Mathematics       (Followers: 6) Journal of Computational Biology       (Followers: 9) Journal of Computational Mathematics and Data Science Journal of Computational Multiphase Flows       (Followers: 1) Journal of Computational Physics       (Followers: 59) Journal of Computational Physics : X       (Followers: 1) Journal of Computer Engineering, System and Science (CESS) Journal of Contemporary Mathematical Analysis Journal of Cryptology       (Followers: 5) Journal of Difference Equations and Applications Journal of Differential Equations       (Followers: 1) Journal of Discrete Mathematics       (Followers: 1) Journal of Dynamics and Differential Equations Journal of Engineering Mathematics       (Followers: 2) Journal of Evolution Equations Journal of Experimental Algorithmics Journal of Flood Risk Management       (Followers: 14) Journal of Function Spaces Journal of Functional Analysis       (Followers: 3) Journal of Geochemical Exploration       (Followers: 4) Journal of Geological Research       (Followers: 1) Journal of Geovisualization and Spatial Analysis Journal of Global Optimization       (Followers: 6) Journal of Global Research in Mathematical Archives Journal of Homotopy and Related Structures Journal of Honai Math Journal of Humanistic Mathematics       (Followers: 1) Journal of Hyperbolic Differential Equations Journal of Indian Council of Philosophical Research Journal of Industrial Mathematics       (Followers: 2) Journal of Inequalities and Applications Journal of Infrared, Millimeter and Terahertz Waves       (Followers: 3) Journal of Integrable Systems Journal of Knot Theory and Its Ramifications       (Followers: 2) Journal of Liquid Chromatography & Related Technologies       (Followers: 7) Journal of Logical and Algebraic Methods in Programming       (Followers: 1) Journal of Manufacturing Systems       (Followers: 3) Journal of Mathematical Analysis and Applications       (Followers: 3) Journal of mathematical and computational science       (Followers: 2)

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Similar Journals
 International Electronic Journal of AlgebraNumber of Followers: 0     Open Access journal ISSN (Print) 1306-6048 - ISSN (Online) 1306-6048 Published by DergiPark  [187 journals]
• Counting non-isomorphic generalized Hamilton quaternions

• Authors: Jose Maria GRAU; Celino MIGUEL, Antonio M. OLLER-MARCEN
Abstract: In this paper we study the isomorphisms of generalized Hamilton quaternions $\Big(\frac{a,b}{R}\Big)$ where $R$ is a finite unital commutative ring of odd characteristic and $a,b \in R$. We obtain the number of non-isomorphic classes of generalized Hamilton quaternions in the case where $R$ is a principal ideal ring. This extends the case $R=\mathbb{Z}/n\mathbb{Z}$ where $n$ is an odd integer.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• On $+\infty$-$\omega_0$-generated field extensions

• Authors: El Hassane FLIOUET
Abstract: A purely inseparable field extension $K$ of a field $k$ of characteristic $p\not=0$ is said to be $\omega_0$-generatedover $k$ if $K/k$ is not finitely generated, but $L/k$ is finitely generated for each proper intermediate field $L$.In 1986, Deveney solved the question posed by R. Gilmer and W. Heinzer, which consists in knowing if the lattice of intermediate fields of an $\omega_0$-generated field extension $K/k$ is necessarily linearly ordered under inclusion, by constructing an example of an $\omega_0$-generated field extension where $[k^{p^{-n}}\cap K: k]= p^{2n}$ for all positive integer $n$. This example has proved to be extremely useful in the construction of other examples of $\omega_0$-generated field extensions (of any finite irrationality degree).In this paper, we characterize the extensions of finite irrationality degree which are $\omega_0$-generated.In particular, in the case of unbounded irrationality degree, any modular extension of unbounded exponent contains a proper subfield of unbounded exponent over the ground field.Finally, we give a generalization, illustrated by an example, of the $\omega_0$-generated to include modular purely inseparable extensions of unbounded irrationality degree.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• Beyond Knuth's notation for unimaginable numbers within computational
number theory

• Authors: Antonino LEONARDIS; Gianfranco D'ATRI, Fabio CALDAROLA
Abstract: Literature considers under the name "unimaginable numbers" anypositive integer going beyond any physical application. One of the most knownmethodologies to conceive such numbers is using hyper-operations, that is asequence of binary functions dened recursively starting from the usual chain:addition - multiplication - exponentiation. The most important notations torepresent such hyper-operations have been considered by Knuth, Goodstein,Ackermann and Conway as described in this work's introduction. Within thiswork we will give an axiomatic setup for this topic, and then try to nd on onehand other ways to represent unimaginable numbers, as well as on the otherhand applications to computer science, where the algorithmic nature of representations and the increased computation capabilities of computers give theperfect eld to develop further the topic, exploring some possibilities to effectively operate with such big numbers. In particular, we will give some axiomsand generalizations for the up-arrow notation and, considering a representation via rooted trees of the hereditary base-n notation, we will determine insome cases an effective bound related to "Goodstein sequences" using Knuthsnotation. Finally, we will also analyze some methods to compare big numbers,proving specically a theorem about approximation using scientic notationand a theorem on hyperoperation bounds for Steinhaus-Moser notation.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• Property of defect diminishing and stability

• Authors: Marco Antonio Garcia MORALES; Lev GLEBSKY
Abstract: Let $\Gamma$ be a group and $\mathscr{C}$ a class of groups endowed with bi-invariant metrics. We say that $\Gamma$ is $\mathscr{C}$-stable if every $\varepsilon$-homomorphism $\Gamma \rightarrow G$, $(G,d) \in \mathscr{C}$, is $\delta_\varepsilon$-close to a homomorphism, $\delta_\varepsilon\to 0$ when $\varepsilon\to 0$. If $\delta_\varepsilon < C \varepsilon$ for some $C$ we say that $\Gamma$ is $\mathscr{C}$-stable with a linear rate. We say that $\Gamma$ has the property of defect diminishing if any asymptotic homomorphism can be changed a little to make errors essentially better. We show that the defect diminishing is equivalent to the stability with a linear rate.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• On a property of the ideals of the polynomial ring $R[x]$

• Authors: Amr Ali Abdulkader AL-MAKTRY
Abstract: Let RR be a commutative ring with unity 1≠01≠0. In this paper we introduce the definition of the first derivative property on the ideals of the polynomial ring R[x]R[x]. In particular, when RR is a finite local ring with principal maximal ideal m≠{0}m≠{0} of index of nilpotency ee, where 1<e≤ R/m +11≤e≤ R/m +1, we show that the null ideal consisting of polynomials inducing the zero function on RR satisfies this property. As an application, when RR is a finite local ring with null ideal satisfying this property, we prove that the stabilizer group of RR in the group of polynomial permutations on the ring R[x]/(x2)R[x]/(x2), is isomorphic to a certain factor group of the null ideal.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• On quartic Diophantine equations with trivial solutions in the Gaussian
integers

Abstract: We show that the quartic Diophantine equations $ax^4+by^4=cz^2$ has only trivial solution in the Gaussian integers for some particular choices of $a,b$ and $c$. Our strategy is by elliptic curves method. In fact, we exhibit two null-rank corresponding families of elliptic curves over Gaussian field. We also determine the torsion groups of both families.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• The hom-associative Weyl algebras in prime characteristic

• Authors: Per BACK; Johan RICHTER
Abstract: We introduce the first hom-associative Weyl algebras over a field of prime characteristic as a generalization of the first associative Weyl algebra in prime characteristic. First, we study properties of hom-associative algebras constructed from associative algebras by a general twisting'' procedure. Then, with the help of these results, we determine the commuter, center, nuclei, and set of derivations of the first hom-associative Weyl algebras. We also classify them up to isomorphism, and show, among other things, that all nonzero endomorphisms on them are injective, but not surjective. Last, we show that they can be described as a multi-parameter formal hom-associative deformation of the first associative Weyl algebra, and that this deformation induces a multi-parameter formal hom-Lie deformation of the corresponding Lie algebra, when using the commutator as bracket.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• On I-finite left quasi-duo rings

• Authors: Ayman M. A. HOROUB; W. K. NICHOLSON
Abstract: A ring is called left quasi-duo (left QD) if every maximal left ideal is aright ideal, and it is called I-finite if it contains no infinite orthogonalset of idempotents. It is shown that a ring is I-finite and left QD if andonly if it is a generalized upper-triangular matrix ring with all diagonalrings being division rings except the lower one, which is either a divisionring or it is I-finite, left QD and left soclin' (left QDS). Here a ring iscalled left soclin if each simple left ideal is nilpotent. The left QDSrings are shown to be finite direct products of indecomposable left QDSrings, in each of which 1=f1+⋯+fm1=f1+⋯+fm where the fifi areorthogonal primitive idempotents, with fk≈flfk≈fl for all k,l,k,l,and ≈≈ is the block equivalence on {f1,…,fm}.{f1,…,fm}.A ring is shown to be left soclin if and only if every maximal left ideal isleft essential, if and only if the left socle is contained in the leftsingular ideal. These left soclin rings are proved to be a Morita invariantclass; and if a ring is semilocal and non-semisimple, then it is left soclinif and only if the Jacobson radical is essential as a left ideal..Left quasi-duo elements are defined for any ring and shown to constitute asubring containing the centre and the Jacobson radical of the ring. Thewidth' of any left QD ring is defined and applied to characterize thesemilocal left QD rings, and to clarify the semiperfect case..
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• Coregular sequences and top local homology modules

• Authors: Nguyen Minh TRI
Abstract:  In this paper, we show that if $M$ is a non-zero Artinian $R$-module and $\underline{x}:=x_1,\ldots,x_n$ is an $M$-coregular sequence, then $x_1,\ldots,x_n$ is a $D(H_n^{\underline{x}}(M))$-coregular sequence. Moreover, if $R$ is complete with respect to $I$-adic topology and $d=\mathrm{Ndim} M$, then $\dim H^I_d(M) \le d$ and $\mathrm{depth} H_I^d(M)\ge \min\{{2, d}\}$ whenever $H^I_d(M) \ne 0.$
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• On Bell polynomials associated to Vasyunin cotangent sums

• Authors: Samir BELHADJ; Mouloud GOUBİ
Abstract: The present work is focused on the study of a cotangent sumassociated to the zeros of the Estermann zeta function and Riemannzeta function. We use Bell polynomials and generating functionsapproach to give arithmetical proof of its Dirichlet seriesdifferent from that given by M. Th. Rassias.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• Deriving some properties of Stanley-Reisner rings from their squarefree
zero-divisor graphs

• Authors: Ashkan NIKSERESHT
Abstract: Let ΔΔ be a simplicial complex, IΔIΔ its Stanley-Reisner ideal and R=K[Δ]R=K[Δ] its Stanley-Reisner ring over a field KK. In 2018, the author introduced the squarefree zero-divisor graph of RR, denoted by Γsf(R)Γsf(R), and proved that if ΔΔ and Δ′Δ′ are two simplicial complexes, then the graphs Γsf(K[Δ])Γsf(K[Δ]) and Γsf(K[Δ′])Γsf(K[Δ′]) are isomorphic if and only if the rings K[Δ]K[Δ] and K[Δ′]K[Δ′] are isomorphic. Here we derive some algebraic properties of RR using combinatorial properties of Γsf(R)Γsf(R). In particular, we state combinatorial conditions on Γsf(R)Γsf(R) which are necessary or sufficient for RR to be Cohen-Macaulay. Moreover, we investigate when Γsf(R)Γsf(R) is in some well-known classes of graphs and show that in these cases, IΔIΔ has a linear resolution or is componentwise linear. Also we study the diameter and girth of Γsf(R)Γsf(R) and their algebraic interpretations.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• On two questions of Nicholson

• Authors: Feroz SIDDIQUE
Abstract: We show that a ring $R$ has stable range one if and only if everyleft unit lifts modulo every left principal ideal. We also showthat a left quasi-morphic ring has stable range one if and only ifit is left uniquely generated. Thus we answer in the affirmativethe two questions raised by W. K. Nicholson.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• On S-primary submodules

• Authors: H. ANSARI-TOROGHY; S. S. POURMORTAZAVİ
Abstract: Let $R$ be a commutative ring with identity, $S$ a multiplicatively closed subset of $R$, and $M$ be an $R$-module. In this paper, we study and investigate some properties of $S$-primary submodules of $M$. Among the other results, it is shown that this class of modules contains the family of primary (resp. $S$-prime) submodules properly.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

• On lattices associated to rings with respect to a preradical

• Authors: Erwin CERDA-LEON; Hugo RINCON-MEJIA
Abstract: We introduce some new lattices of classes of modules with respect to appropriate preradicals. We introduce some concepts associated with these lattices, such as the $\sigma$-semiartinian rings, the $\sigma$-retractable modules, the $\sigma$-$V$-rings, the $\sigma$-max rings. We continue to study $\sigma$-torsion theories, $\sigma$-open classes, $\sigma$-stable classes. We prove some theorems that extend some known results. Our results fall into well known situations when the preradical $\sigma$ is chosen as the identity preradical.
PubDate: Mon, 17 Jan 2022 00:00:00 +030

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