This research article provides a comprehensive scenario analysis of key structural changes
in Kazakhstan’s fuel and energy complex subsectors until 2060, focusing on decarbonization efforts.
The background places the ...
Turgumbaev, M.Zh.; Suleimenova, Z.R.; Tungushbaeva, D.I.(Bulletin of the Karaganda University. Mathematics Series, 2023)
In this paper, we consider the questions about the weighted integrability of the sum of series with respect
to multiplicative systems with monotone coefficients. Conditions are obtained for weight functions that
ensure ...
Muratbekova, Mussakan; Bayandiyev, Yerik(Faculty of Sciences and Mathematics, 2021)
This paper studies the question of the resolvent existence, as well as, the smoothness of elements
from the definition domain (separability) of a class of hyperbolic differential operators defined in an
unbounded domain ...
Tleukhanova, N.T.; Mussabayeva, G.K.; Manarbek, M.(Bulletin of the Karaganda University. Mathematics Series, 2023)
The classical inequalities of Bochkarev play a very important role in harmonic analysis. The meaning of
these inequalities lies in the connection between the metric characteristics of functions and the summability
of ...
Basheyeva, A.O.; Lutsak, S.M.(Bulletin of the Karaganda University. Mathematics Series, 2023)
The existence of a finite identity basis for any finite lattice was established by R. McKenzie in 1970, but the
analogous statement for quasi-identities is incorrect. So, there is a finite lattice that does not have a ...
Myrzakulov, K.R.; Kenzhalin, D.Zh.; Myrzakul, T.R.(International Journal of Mathematics and Physics, 2021)
The study of the origin and evolution of our Universe is one of the interesting and actual directions in
modern physics and astrophysics. This paper considers the cosmological model of the Universe in the Einstein's ...
Muratbekov, M.B.; Muratbekov, M.M.(Faculty of Sciences and Mathematics, 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 ...
This paper presents a generalized closed-form beamforming technique that can achieve the maximum degrees of
freedom in compounded multiple-input multiple-output (MIMO)
broadcast channels with mixed classes of multiple-antenna ...
The interaction of fine particles with an expanding
gas flow under fluidization conditions is considered. The
objects of study are finely dispersed materials, their single
particles, gas flow in a fluidized layer. ...
Any new gravitational theories can be built with the help of a gauge theory with local
Poincare symmetry. This local Poincare symmetry can set up a space-time with torsion. In the present
study, the authors working on ...
KALYBAY, AIGERIM; ZHANGABERGENOVA, NAZERKE(Operators and Matrices, 2023)
The paper discusses a new iterated discrete inequality of Hardy type involving an
operator with some matrix kernel. Under certain conditions on this matrix kernel, the given
inequality is characterized.
Basheyeva, Ainur; Lutsak, Svetlana(De Gruyter proceedings in mathematics, 2024)
We prove that a finite pointed abelian group generates a finitely axiomatizable variety that has a
finite quasivariety lattice. As a consequence, we obtain that a quasivariety generated by a finite pointed
abelian group ...
In this paper the problem of the existence of solutions is studied for a hyperbolic type
differential equation defined in an unbounded domain. The problem of the smoothness of solutions is
also considered here. Such ...
The object of the research is the
technology of constructing a computer
ontology (CO) for electronic textbooks
of the subject area (KSA). As an
example, the industry is consideredinformation and communication ...
The article offers a systematic approach to the method of developing mathematical
models of a chemical-technological system (CTS) in conditions of deficit and fuzziness of initial
information using available data of ...
In this paper, we study oscillatory properties of a fourth-order differential equation and
spectral properties of a corresponding differential operator. These properties are established by
first proving a new second-order ...
In this paper, we review the so-called Myrzakulov Gravity models (MG-N, with N = I, II, . . . ,
VIII) and derive their respective metric-affine generalizations (MAMG-N), discussing also their
particular sub-cases. The ...
Many technological systems are characterized by fuzzy initial information, necessary for the
development of their models, optimization and control of operating modes. Therefore, the purpose
of this study is to formulate ...