• Numerical solution of a problem on bending oscillation of a rod 

  Bukenov, M.; Ibrayev, A.; Zhussupova, D.; Azimova, D. (Bulletin of the Karaganda university - Mathematics, 2017)

  In article considered the problem of curved rod fluctuation with JungB (TM) s module. Shown the civility of the problem formulation. For solution used integro - interpolation method. Constructed implicit differential scheme, ...
• Analytical and graphical methods for the solution of one problem of transport logistics 

  Zhetpisov, K.; Karbenova, N.G. (Bulletin of the Karaganda university - Mathematics, 2017)

  This article shows the way to solve a specific problem of transport logistics using the potential method. The first support plan is constructed by the method of the north-western corner. The article also shows a graphical ...
• On one algorithm for finding a solution to a two-point boundary value problem for loaded differential equations with impulse effect 

  Bakirova, E.A.; Kadirbayeva, Zh.M.; Tleulesova, A.B. (Bulletin of the Karaganda university - Mathematics, 2017)

  A linear two-point boundary value problem for a system of loaded differential equations with impulse effect is investigated. The parameterization method is used to solve the problem. The essence of parameterization method ...
• Hardy-type inequalities for matrix operators 

  Shaimardan, S.; Shalgynbaeva, S. (Bulletin of the Karaganda university - Mathematics, 2017)

  We establish necessary and sufficient conditions the validity of the discrete Hardy-type inequality (Sigma(infinity)(i=1)(Sigma(infinity)(j=1) a(i,j) f(j))(q) u(i)(q))(1/q) <= (Sigma(infinity)(i=1) f(i)(p)v(i)(p))(1/p) ...
• Дискретное весовое неравенство Харди в разностной форме [Discrete weighted Hardy inequality in difference form] 

  Калыбай, А.; Ойнаров, Р.; Шалгинбаева, С. (Вестник Карагандинского университета - математика, 2017)

  В статье мы находим необходимые и достаточные условия для выполнения дискретного неравенства Харди с весами, записанного в разностной форме. Задача исследуется на множестве финитных последовательностей. Ключевой результат ...
• Оптимальные вложения потенциалов типа Бесселя и Рисса на базе пространств Лоренца [Optimal embeddings potentials type Bessel and Riesz on the base of Lorentz spaces] 

  Каршыгина, Г.Ж. (Вестник Карагандинского университета - Серия Математика, 2017)

  В статье изучено прострванство потенциалов на n-мерном евклидовом пространстве. В частности, в рассмотрение включены пространства классических потенциалов Бесселя и Рисса.
• Hardy type inequalities and compactness of a class of integral operators with logarithmic singularities 

  Abylayeva, Akbota M.; Persson, Lars-Erik (Mathematical inequalities and applications, 2018)

  We establish criteria for both boundedness and compactness for some classes of integral operators with logarithmic singularities in weighted Lebesgue spaces for cases 1 < p <= q < infinity and 1 < q < p < infinity. As ...
• Some integral estimates on the cones of functions with the monotonicity conditions 

  Bokayev, N. A.; Goldman, M. L.; Karshygina, G. Zh (Bulletin of the Karaganda university - Mathematics, 2018)

  In this paper we obtain estimates for the integrals of monotone functions arising in the study of the covering of various cones of functions with monotonicity conditions. We apply the method of covering of the cones with ...
• One-dimensional schrodinger operator with a negative parameter and its applications to the study of the approximation numbers of a singular hyperbolic operator 

  Muratbekov, M.B.; Muratbekov, M.M. (Filomat, 2018)

  In this paper we use the one-dimensional Schrodinger operator with a negative parameter to the study of the approximation numbers of a hyperbolic type singular operator. Estimates for the distribution function of the ...
• A new generalization of Boas theorem for some Lorentz spaces Lambda(q) (omega) 

  Kopezhanova, Aigerim; Nursultanov, Erlan; Persson, Lars-Erik (Journal of mathematical inequalities, 2018-09)

  Let Lambda(q)(omega), q > 0, denote the Lorentz space equipped with the (quasi) norm parallel to f parallel to(Lambda q(omega)) := (integral(1)(0) (f*(t)omega(t))(q)dt/t)(1/q) for a function integral on [0,1] and ...
• Marcinkiewicz-type interpolation theorem and estimates for convolutions Morrey-type spaces 

  Burenkov, V.I.; Chigambayeva, D.K.; Nursultanov, E.D. (Eurasian mathematical journal, 2018)

  We introduce a class of Morrey-type spaces M-p,q,Omega(lambda), which includes the classical Money spaces. We discuss their properties and we prove a Marcinkiewicz-type interpolation theorem. This theorem is then applied ...
• Stress-strain state horizontal coal seam of finite length 

  Kudaibergenov, M.K.; Karchevsky, A.L.; Iskakov, K.T. (Bulletin of the Karaganda university - Mathematics, 2018)

  As the result of work, analytical expressions for calculation of tension in coal stratum of terminating length, which is under the influence of overlying breeds and is between two drifts are received. The decision is ...
• Discreteness and estimates of spectrum of a first order difference operator 

  Ospanov, K.N. (Eurasian mathematical journal, 2018)

  We investigated a minimal closed in the space l(2) first order nonsymmetric difference operator L. The matrix of zero order coefficients of L may be an unbounded operator. The study of L is motivated by applications to ...
• Hardy-type inequalities in fractional h-discrete calculus 

  Persson, Lars-Erik; Oinarov, Ryskul; Shaimardan, Serikbol (Journal of Inequalities and Applications, 2018)

  The first power weighted version of Hardy's inequality can be rewritten as integral(infinity)(0) (x(alpha-1) integral(x)(0) 1/t(alpha)f(t)dt)(p) dx <= [p/p - alpha - 1](p) integral(infinity)(0)f(p)(x)dx, f >= 0, p >= ...
• Approaching of the solution of a static compressible medium to the solution of an incompressible medium 

  Bukenov, M.M.; Adamov, À.A.; Koikelova, D.K. (Bulletin of the Karaganda university - Mathematics, 2019)

  A well-known analogy of the flow of viscous incompressible fluid and incompressible elastic medium. According to this analogy, the solution of the equations of the elasticity theory with the Poisson's ratio nu = 0; 5 and ...
• Two-dimensional calculations of stratified turbulent flow in a pipe 

  Matveev, S.K.; Jaichibekov, N.Zh.; Shalabayeva, B.S.; Zhussupova, D. (Bulletin of the Karaganda university - Mathematics, 2019)

  In this paper, we consider the stratified turbulent flow of a two-phase medium in inclined pipes. Based on the new turbulence model [1], a program code for calculating two-dimensional flows for the study of two-phase ...
• Mathematical modeling of the source and environment response for the equation of geoelectrics 

  Iskakov, K.T.; Mukanova, B.G.; Berdyshev, A.S.; Kembay, A.S.; Tokseit, D.K. (Bulletin of the Karaganda university - Mathematics, 2019)

  In this paper an algorithm is proposed for determining the source of excitation of electromagnetic waves emitted by the Ground-penetrating radar (GPR) device as a function of time. A mathematical model for solving this ...
• Two-dimensional thermo-viscoelastic waves in layered media 

  Bukenov, M.M.; Adamov, A.A.; Mukhametov, Y.M. (Bulletin of the Karaganda university - Mathematics, 2019)

  Dynamic problems of deformation of solids have been the subject of numerous studies in the CIS and abroad. The rejection of a number of simplifying assumptions made in the cited and other published works leads to the need ...
• Conditions of coercive solvability of third-order differential equation with unbounded intermediate coefficients 

  Ospanov, K.N.; Yeskabylova, Zh.B. (Bulletin of the Karaganda university - Mathematics, 2019)

  In this paper we study the following equation -y ''' + r(x)y '' + q (x)y ' + s(x) y = f (x), where the intermediate coefficients r and q do not depend on s. We give the conditions of the coercive solvability for f is an ...
• O'neil-type inequalities for convolutions in anisotropic lorents spaces 

  Tleukhanova, N.T.; Sadykova, K.K. (Eurasian mathematical journal, 2019)

  In this paper we study the boundedness of convolutions in the anisotropic Lorentz spaces

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