Subjects -> MATHEMATICS (Total: 1013 journals)
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    - MATHEMATICS (714 journals)
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MATHEMATICS (714 journals)            First | 1 2 3 4     

Showing 601 - 538 of 538 Journals sorted alphabetically
Research in the Mathematical Sciences     Open Access  
Research Journal of Pure Algebra     Open Access   (Followers: 1)
Researches in Mathematics     Open Access  
Results in Control and Optimization     Open Access  
Results in Mathematics     Hybrid Journal  
Results in Nonlinear Analysis     Open Access  
Review of Symbolic Logic     Full-text available via subscription   (Followers: 2)
Reviews in Mathematical Physics     Hybrid Journal   (Followers: 1)
Revista Baiana de Educação Matemática     Open Access  
Revista Bases de la Ciencia     Open Access  
Revista BoEM - Boletim online de Educação Matemática     Open Access  
Revista Colombiana de Matemáticas     Open Access   (Followers: 1)
Revista de Ciencias     Open Access  
Revista de Educación Matemática     Open Access  
Revista de la Escuela de Perfeccionamiento en Investigación Operativa     Open Access  
Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales. Serie A. Matematicas     Partially Free  
Revista de Matemática : Teoría y Aplicaciones     Open Access   (Followers: 1)
Revista Digital: Matemática, Educación e Internet     Open Access  
Revista Electrónica de Conocimientos, Saberes y Prácticas     Open Access  
Revista Integración : Temas de Matemáticas     Open Access  
Revista Internacional de Sistemas     Open Access  
Revista Latinoamericana de Etnomatemática     Open Access  
Revista Latinoamericana de Investigación en Matemática Educativa     Open Access  
Revista Matemática Complutense     Hybrid Journal  
Revista REAMEC : Rede Amazônica de Educação em Ciências e Matemática     Open Access  
Revista SIGMA     Open Access  
Ricerche di Matematica     Hybrid Journal  
RMS : Research in Mathematics & Statistics     Open Access  
Royal Society Open Science     Open Access   (Followers: 7)
Russian Journal of Mathematical Physics     Full-text available via subscription  
Russian Mathematics     Hybrid Journal  
Sahand Communications in Mathematical Analysis     Open Access  
Sampling Theory, Signal Processing, and Data Analysis     Hybrid Journal  
São Paulo Journal of Mathematical Sciences     Hybrid Journal  
Science China Mathematics     Hybrid Journal   (Followers: 1)
Science Progress     Full-text available via subscription   (Followers: 1)
Sciences & Technologie A : sciences exactes     Open Access  
Selecta Mathematica     Hybrid Journal   (Followers: 1)
SeMA Journal     Hybrid Journal  
Semigroup Forum     Hybrid Journal   (Followers: 1)
Set-Valued and Variational Analysis     Hybrid Journal  
SIAM Journal on Applied Mathematics     Hybrid Journal   (Followers: 11)
SIAM Journal on Computing     Hybrid Journal   (Followers: 11)
SIAM Journal on Control and Optimization     Hybrid Journal   (Followers: 18)
SIAM Journal on Discrete Mathematics     Hybrid Journal   (Followers: 8)
SIAM Journal on Financial Mathematics     Hybrid Journal   (Followers: 3)
SIAM Journal on Mathematics of Data Science     Hybrid Journal   (Followers: 1)
SIAM Journal on Matrix Analysis and Applications     Hybrid Journal   (Followers: 3)
SIAM Journal on Optimization     Hybrid Journal   (Followers: 12)
Siberian Advances in Mathematics     Hybrid Journal  
Siberian Mathematical Journal     Hybrid Journal  
Sigmae     Open Access  
SILICON     Hybrid Journal  
SN Partial Differential Equations and Applications     Hybrid Journal  
Soft Computing     Hybrid Journal   (Followers: 7)
Statistics and Computing     Hybrid Journal   (Followers: 14)
Stochastic Analysis and Applications     Hybrid Journal   (Followers: 3)
Stochastic Partial Differential Equations : Analysis and Computations     Hybrid Journal   (Followers: 2)
Stochastic Processes and their Applications     Hybrid Journal   (Followers: 6)
Stochastics and Dynamics     Hybrid Journal   (Followers: 2)
Studia Scientiarum Mathematicarum Hungarica     Full-text available via subscription   (Followers: 1)
Studia Universitatis Babeș-Bolyai Informatica     Open Access  
Studies In Applied Mathematics     Hybrid Journal   (Followers: 1)
Studies in Mathematical Sciences     Open Access   (Followers: 1)
Superficies y vacio     Open Access  
Suska Journal of Mathematics Education     Open Access   (Followers: 1)
Swiss Journal of Geosciences     Hybrid Journal   (Followers: 1)
Synthesis Lectures on Algorithms and Software in Engineering     Full-text available via subscription   (Followers: 2)
Synthesis Lectures on Mathematics and Statistics     Full-text available via subscription   (Followers: 1)
Tamkang Journal of Mathematics     Open Access  
Tatra Mountains Mathematical Publications     Open Access  
Teaching Mathematics     Full-text available via subscription   (Followers: 10)
Teaching Mathematics and its Applications: An International Journal of the IMA     Hybrid Journal   (Followers: 4)
Teaching Statistics     Hybrid Journal   (Followers: 8)
Technometrics     Full-text available via subscription   (Followers: 8)
The Journal of Supercomputing     Hybrid Journal   (Followers: 1)
The Mathematica journal     Open Access  
The Mathematical Gazette     Full-text available via subscription   (Followers: 1)
The Mathematical Intelligencer     Hybrid Journal  
The Ramanujan Journal     Hybrid Journal  
The VLDB Journal     Hybrid Journal   (Followers: 2)
Theoretical and Mathematical Physics     Hybrid Journal   (Followers: 7)
Theory and Applications of Graphs     Open Access  
Topological Methods in Nonlinear Analysis     Full-text available via subscription  
Transactions of the London Mathematical Society     Open Access   (Followers: 1)
Transformation Groups     Hybrid Journal  
Turkish Journal of Mathematics     Open Access  
Ukrainian Mathematical Journal     Hybrid Journal  
Uniciencia     Open Access  
Uniform Distribution Theory     Open Access  
Unisda Journal of Mathematics and Computer Science     Open Access  
Unnes Journal of Mathematics     Open Access   (Followers: 1)
Unnes Journal of Mathematics Education     Open Access   (Followers: 2)
Unnes Journal of Mathematics Education Research     Open Access   (Followers: 1)
Ural Mathematical Journal     Open Access  
Vestnik Samarskogo Gosudarstvennogo Tekhnicheskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki     Open Access  
Vestnik St. Petersburg University: Mathematics     Hybrid Journal  
VFAST Transactions on Mathematics     Open Access   (Followers: 1)
Vietnam Journal of Mathematics     Hybrid Journal  
Vinculum     Full-text available via subscription  
Visnyk of V. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics     Open Access   (Followers: 2)
Water SA     Open Access   (Followers: 1)
Water Waves     Hybrid Journal  
Zamm-Zeitschrift Fuer Angewandte Mathematik Und Mechanik     Hybrid Journal   (Followers: 1)
ZDM     Hybrid Journal   (Followers: 2)
Zeitschrift für angewandte Mathematik und Physik     Hybrid Journal   (Followers: 2)
Zeitschrift fur Energiewirtschaft     Hybrid Journal  
Zetetike     Open Access  

  First | 1 2 3 4     

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Siberian Mathematical Journal
Journal Prestige (SJR): 0.675
Citation Impact (citeScore): 1
Number of Followers: 0  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1573-9260 - ISSN (Online) 0037-4466
Published by Springer-Verlag Homepage  [2469 journals]
  • On Intersections of  $ \pi $ -Hall Subgroups in Finite $
           D_{\pi} $ -Groups

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      Abstract: Abstract We give an example of a series of finite \( D_{\pi} \) -groups where for each group \( G \) in the series and its \( \pi \) -Hall subgroup \( H \) , the inequality \( H\cap H^{x}\cap H^{y}\neq 1 \) holds for all \( x,y\in G \) . Thus a negative answer is obtained both to Problem 7.3 by Vdovin and Revin and its analog—Question 18.31 in The Kourovka Notebook. We also describe the subgroups \( \operatorname{Min}_{G}(H,H,H) \) and \( \min_{G}(H,H,H) \) .
      PubDate: 2022-07-01
       
  • Functional-Differential Equations with Dilation and Symmetry

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      Abstract: Abstract We examine the Dirichlet problem in a bounded plane domain for a strongly elliptic functional-differential equation of the second order containing the argument transformations \( x\mapsto px \) ( \( p>0 \) ) and \( x\mapsto-x \) in higher-order derivatives. The study of solvability of the problem relies on a Gårding-type inequality for which some necessary and sufficient conditions are obtained in algebraic form.
      PubDate: 2022-07-01
       
  • On the Existence of $ G $ -Permutable Subgroups in Simple Sporadic Groups

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      Abstract: Abstract A subgroup \( A \) of a group \( G \) is \( G \) -permutable in  \( G \) if for every subgroup \( B\leq G \) there is \( x\in G \) satisfying \( AB^{x}=B^{x}A \) . A subgroup \( A \) is hereditarily \( G \) -permutable in  \( G \) if  \( A \) is \( E \) -permutable in every subgroup  \( E \) of  \( G \) which includes  \( A \) . The Kourovka Notebook contains Problem 17.112: Which finite nonabelian simple groups \( G \) possess a proper (hereditarily) \( G \) -permutable subgroup' We answer the question for simple sporadic groups.
      PubDate: 2022-07-01
       
  • Multiagent Temporal Logics, Unification Problems, and Admissibilities

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      Abstract: Abstract Under study is the temporal multiagent logic with different intervals of lost time which are individual for each of the agents. The logic bases on the frames with principal basic sets on all naturals  \( N \) as temporal states, where each agent  \( j \) can have their own proper sets  \( X_{j} \) of inaccessible (lost, forgotten) temporal states ( \( X_{j}\subset N \) for all \( j\in J \) ). The unification problem and the problem of the algorithmic recognition of admissible inference rules are the main mathematical problems of the paper. The solution of the unification problem consists in finding a finite computable set of formulas which is a complete set of unifiers. The problem is solved by the Ghilardi technique of projective formulas. We prove that every formula unifiable in this logic is projective and provide some algorithm constructing its projective unifier, which solves the unification problem. This makes it possible to solve the open problem of the algorithmic recognition of admissible rules. The article ends with some generalization of the definition of projective formulas—weakly projective formulas—and exhibits an easy example of their application.
      PubDate: 2022-07-01
       
  • Existence and Uniqueness of the Solution to a Degenerate Third Boundary
           Value Problem for a Multidimensional Parabolic Equation

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      Abstract: Abstract We study the well-posedness of a third boundary value problem for a multidimensional parabolic equation in the case when the coefficient of the conormal derivative vanishes at some points. We show that under some conditions on the sign of this coefficient there exists nonexistence or nonuniqueness of a solution in the conventional anisotropic Sobolev space. Using the regularization method, we prove existence and uniqueness theorems for the regular solution in suitable weighted spaces.
      PubDate: 2022-07-01
       
  • An Observer-Based Stabilizing Controller for Linear Neutral Delay Systems

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      Abstract: Abstract This paper is concerned with feedback stabilization of linear delay systems of neutral type. When the unstable characteristic roots of the systems are far from the imaginary axis, the discretization of unstable differential equations results in a large error. In this case, it is difficult to seek stabilizing control laws via a direct extension of the algorithm provided in the literature. In order to remedy the difficulty, a modified state equation is constructed through a shifting parameter such that it is asymptotically stable. Then, basing on the modified state equation, we present some numerical algorithms to design the stabilizing controller and the observer of the neutral systems, respectively. Furthermore, we derive a separation property for the observer-based stabilizing controller of the neutral systems which extends the result in the literature.
      PubDate: 2022-07-01
       
  • De Rham’s Theorem for Orlicz Cohomology

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      Abstract: Abstract We prove that the de Rham \( L^{\phi} \) -cohomology of a Riemannian manifold \( M \) admitting a convenient triangulation \( X \) is isomorphic to the simplicial \( \ell^{\phi} \) -cohomology of \( X \) under some assumptions on the Young function \( \phi \) . This result implies the quasi-isometry invariance of the first cohomology.
      PubDate: 2022-07-01
       
  • Formulas for Calculating the $ 3j $ -Symbols of the Representations of the
           Lie Algebra  $ {\mathfrak{gl}}_{3} $ for the Gelfand–Tsetlin Bases

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      Abstract: Abstract We give a simple explicit formula for an arbitrary \( 3j \) -symbol for the Lie algebra  \( {\mathfrak{gl}}_{3} \) . The symbol is expressed as the ratio of values of hypergeometric functions with \( \pm 1 \) substituted for all arguments. Finding a  \( 3j \) -symbol is essentially equivalent to the determination of an arbitrary Clebsch–Gordan coefficient for  \( {\mathfrak{gl}}_{3} \) . The coefficients are important in the quark theory of quantum mechanics.
      PubDate: 2022-07-01
       
  • Combinatorial Structure of Faces in Triangulations on Surfaces

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      Abstract: Abstract The degree \( d(x) \) of a vertex or face \( x \) in a graph \( G \) on the plane or other orientable surface is the number of incident edges. A face \( f=v_{1}\ldots v_{d(f)} \) is of type \( (k_{1},k_{2},\dots) \) if \( d(v_{i})\leq k_{i} \) whenever \( 1\leq i\leq d(f) \) . We denote the minimum vertex-degree of  \( G \) by  \( \delta \) . The purpose of our paper is to prove that every triangulation with \( \delta\geq 4 \) of the torus, as well as of large enough such a triangulation of any fixed orientable surface of higher genus has a face of one of the types \( (4,4,\infty) \) , \( (4,6,12) \) , \( (4,8,8) \) , \( (5,5,8) \) , \( (5,6,7) \) , or \( (6,6,6) \) , where all parameters are best possible.
      PubDate: 2022-07-01
       
  • Finite Groups with Solvable or $ \Phi $ -Simple Maximal Subgroups

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      Abstract: Abstract We study the structure of nonsolvable finite groups whose every nonsolvable maximal subgroup is \( \Phi \) -simple.
      PubDate: 2022-07-01
       
  • Nonlinear Mixed Jordan Triple $ * $ -Derivations on $ * $ -Algebras

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      Abstract: Abstract Let \( {\mathcal{A}} \) be a unital \( \ast \) -algebra containing a nontrivial projection. Under some mild conditions on  \( {\mathcal{A}} \) , it is shown that a map \( \Phi:{\mathcal{A}}\rightarrow{\mathcal{A}} \) is a nonlinear mixed Jordan triple \( * \) -derivation if and only if  \( \Phi \) is an additive \( * \) -derivation. In particular, we apply the above result to prime \( \ast \) -algebras, von Neumann algebras with no central summands of type \( I_{1} \) , factor von Neumann algebras, and standard operator algebras.
      PubDate: 2022-07-01
       
  • Existence of Attractors for Approximations to the Bingham Model and Their
           Convergence to the Attractors of the Initial Model

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      Abstract: Abstract Considering the Bingham fluid motion model, we study the approximation problem, prove its unique solvability, and the existence of attractors. We show that the attractors of the approximation problem converge to the attractors of the Bingham model in the sense of the Hausdorff semidistance in the corresponding metric space as the approximation parameter vanishes.
      PubDate: 2022-07-01
       
  • Finite Groups with Subnormal Residuals of Sylow Normalizers

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      Abstract: Abstract Considering a nonempty formation \( {\mathfrak{X}} \) of nilpotent groups, we prove that a group \( G \) is an extension of a nilpotent group by an \( {\mathfrak{X}} \) -group if and only if every Sylow normalizer in \( G \) is solvable and its \( {\mathfrak{X}} \) -residual is subnormal in \( G \) . We also show that  \( G \) is supersolvable if and only if every Sylow normalizer in \( G \) is supersolvable and its nilpotent residual is subnormal in \( G \) .
      PubDate: 2022-07-01
       
  • Abnormal Extremals of Left-Invariant Sub-Finsler Quasimetrics on
           Four-Dimensional Lie Groups with Three-Dimensional Generating
           Distributions

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      Abstract: Abstract We find the three-dimensional subspaces of four-dimensional Lie algebras which generate the algebras, as well as abnormal extremals on the connected Lie groups determined by these algebras and endowed with the left-invariant sub-Finsler quasimetrics defined by seminorms on the subspaces. Using the structure constants of Lie algebras and dual seminorms, we establish a criterion for the strict abnormality of the extremals.
      PubDate: 2022-07-01
       
  • Semiexponential Distributions and Related Large Deviation Principles for
           Trajectories of Random Walks

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      Abstract: Abstract We obtain a rather simple characterization of semiexponential distributions. This allows us to relax substantially the conditions for the fulfillment of the moderately large deviation principle for the trajectories of random walks when Cramér’s condition does not hold. Besides, using the previous results, we establish the local large deviation principle (LDP) outside the zone of moderately large deviations for semiexponential random walks. The latter principle differs much from the LDP in the case that Cramér’s condition holds: The deviation function for it is concave but not convex, the deviation functional is finite only on jump trajectories, and so forth.
      PubDate: 2022-07-01
       
  • Right Alternative Unital Bimodules over the Matrix Algebras of Order 
           $ \geq 3 $

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      Abstract: Abstract We address the unital right alternative bimodules over the matrix algebras  \( {\mathrm{M}}_{n}(\Phi) \) of order \( n\geq 3 \) , prove that each of these bimodules is the direct sum of an associative bimodule and a Graves bimodule, and fully describe the structure of twisted Graves bimodules. Also, we construct an irreducible right alternative \( {\mathrm{M}}_{n}(\Phi) \) -bimodule of minimal dimension \( n(n-1) \) . Furthermore, we show that no element  \( f(x,y) \) of the free right alternative algebra of rank 3 is its nuclear element. The results of this article are needed for the study of the right alternative superalgebras whose even part includes  \( {\mathrm{M}}_{n}(\Phi) \) with \( n\geq 3 \) .
      PubDate: 2022-07-01
       
  • Representations, Products, and Varieties of  $ m $ -Groups

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      Abstract: Abstract Under study is the structure of the \( m \) -homomorphic images of \( m \) -subgroups in a Cartesian product of \( m \) -groups which admit a faithful \( m \) -transitive representation. We propose some construction that enables us to produce idempotents in the semigroup of varieties of \( m \) -groups.
      PubDate: 2022-07-01
       
  • Estimates of Solutions to Infinite Systems of Linear Equations and the
           Problem of Interpolation by Cubic Splines on the Real Line

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      Abstract: Abstract We study the solvability of bi-infinite systems of linear equations whose matrices are diagonally dominant. We prove that the estimates of the norm of the solution in terms of the diagonal dominance value well-known in the case of finite systems of linear equations are also valid for bi-infinite systems of equations. The estimates are used in interpolation by splines on nonuniform meshes on the real line. Using the estimates, we prove the existence and uniqueness of a cubic spline of linear or quadratic growth interpolating data of linear or quadratic growth, without any constraints on node spacing. The familiar estimates of the interpolation error on a segment are carried over to the case of interpolation on the whole real line.
      PubDate: 2022-07-01
       
  • Rota–Baxter Operators on the Simple Jordan Superalgebra  $
           D_{t} $

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      Abstract: Abstract Up to conjugation by an automorphism, we describe the Rota–Baxter operators of weight zero or nonzero on the simple four-dimensional Jordan superalgebra  \( D_{t} \) over an algebraically closed field of characteristic 0. The description includes the classification of all decompositions of  \( D_{t} \) into a direct sum of two subalgebras.
      PubDate: 2022-07-01
       
  • An Algorithm for Constructing the Rectangular Diagrams of
           a Seifert Surface

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      Abstract: Abstract We present an algorithm for constructing a rectangular diagram of a Seifert surface for the link represented by an arbitrary rectangular diagram and estimate the complexity of the resulting surface diagram.
      PubDate: 2022-05-01
      DOI: 10.1134/S003744662203017X
       
 
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