Математика список научных статей
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ИЕРАРХИЧЕСКИЙ ПОДХОД К ДОКАЗАТЕЛЬСТВУ СУЩЕСТВОВАНИЯ ОБОБЩЕННЫХ ПЛОСКИХ ГНЕЗДОВИДНЫХ ЦЕНТРАЛЬНЫХ КОНФИГУРАЦИЙ В НЕКОТОРЫХ ВАРИАНТАХ ОБЩЕЙ ЗАДАЧИ (PN+1)-ТЕЛ
Продемонстрирован иерархический подход к процедуре доказательства существования в общей задаче (pn+1)-тел точных частных решений, так называемых обобщенных плоских центральных конфигураций небесных тел в форме последовательно вложенных один в другой выпуклых n-угольников, в вершинах которых...
2023 / Перепелкина Юлианна Вячеславовна, Задиранов Александр НикитичВАК
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STATISTICAL BOUNDED SEQUENCES OF BI-COMPLEX NUMBERS
In this paper, we extend statistical bounded sequences of real or complex numbers to the setting of sequences of bi-complex numbers. We define the statistical bounded sequence space of bicomplex numbers 𝑏*∞ and also define the statistical bounded sequence spaces of ideals I¹∞ and I²∞ . We prove...
2023 / Subhajit Bera, Binod Chandra TripathyWOSScopusВАКMathSciNet -
A CLASS OF HARMONIC (𝑝, 𝑞)-STARLIKE FUNCTIONS INVOLVING A GENERALIZED (𝑝, 𝑞)-BERNARDI INTEGRAL OPERATOR
With the aid of 𝑞-calculus, this paper introduces a new generalized (𝑝, 𝑞)-Bernardi integral operator ℬ𝑝 𝑛,𝑞𝑓(𝑧). Then, we define a new subclass of harmonic (𝑝, 𝑞)-starlike functions of complex order associated with the operator ℬ𝑝 𝑛,𝑞𝑓(𝑧). For this new subclass, a necessary and sufficient...
2023 / Sarem H. Hadi, Maslina DarusWOSScopusВАКMathSciNet -
ON ℐ2 AND ℐ˚2-CONVERGENCE IN ALMOST SURELY OF COMPLEX UNCERTAIN DOUBLE SEQUENCES
In this study, we investigate the notions of ℐ2-convergence almost surely (a.s.) and ℐ*2 -convergence a.s. of complex uncertain double sequences in an uncertainty space, and obtain some of their features and identify the relationships between them. In addition, we put forward the concepts of ℐ2 and ...
2023 / Omer Ki¸si, Mehmet G¨urdalWOSScopusВАКMathSciNet -
INTEGRAL INEQUALITIES OF SIMPSON TYPE VIA WEIGHTED INTEGRALS
In this work, we use weighted integrals to obtain new integral inequalities of the Simpson type for the class of (ℎ, 𝑚, 𝑠)-convex functions of the second type. In the work we show that the obtained results include some known from the literature, as particular cases.
2023 / J E. N´apoles, M.N. Quevedo Cubillos, B. BayraktarWOSScopusВАКMathSciNet -
ON CAUCHY PROBLEM SOLUTION FOR A HARMONIC FUNCTION IN A SIMPLY CONNECTED DOMAIN
Here we present an investigation of the Cauchy problem solvability for the Laplace equation in a simply connected plane domain. The investigation is reduced to solution of two singular integral equations. If the problem is resolvable, its solution can be restored via the integral Cauchy formula....
2023 / E.A. Shirokova, P.N. IvanshinWOSScopusВАКMathSciNet -
ON NORMALIZED RABOTNOV FUNCTION ASSOCIATED WITH CERTAIN SUBCLASSES OF ANALYTIC FUNCTIONS
In this paper, we investigate some sufficient conditions for the normalized Rabotnov function to be in certain subclasses of analytic and univalent functions. The usefulness of the results is depicted by some corollaries and examples.
2023 / Sevtap Sumer Eker, Bilal Seker, Sadettin EceWOSScopusВАКMathSciNet -
WEIGHTED INTEGRABILITY RESULTS FOR FIRST HANKEL-CLIFFORD TRANSFORM
We obtain sufficient conditions for the weighted integrability of the first Hankel-Clifford transforms of functions from generalized integral Lipschitz classes. These conditions are analogues and generalization of well-known Titchmarsh conditions for the classical Fourier transform.
2023 / S.S. VolosivetsWOSScopusВАКMathSciNet -
СРАВНИТЕЛЬНАЯ ХАРАКТЕРИСТИКА НЕПАРАМЕТРИЧЕСКИХ, А ТАКЖЕ ИНТЕГРИРОВАННЫХ ПО ПАРАМЕТРУ СРЕДНЕВЗВЕШЕННЫХ ОЦЕНОК ГЕОЭКОЛОГИЧЕСКИХ ИЗМЕРИТЕЛЬНЫХ ДАННЫХ
Вопросам средневзвешенной оценки геоэкологических измерительных данных посвящено значительное количество работ. Однако в этой области имеются некоторые пробелы, например, в определении отношения чувствительности арифметически и геометрически средневзвешенных непараметрических оценок; экстремальных...
2023 / Искендерзаде Эльчин Барат, Рагимов Джейхун Расиф, Рагимов Эльшан Расиф, Велиев Гасан СаркарВАК -
ОПРЕДЕЛЕНИЕ ПОЛА ЧЕЛОВЕКА ПО ОДОНТОМЕТРИЧЕСКИМ ПРИЗНАКАМ С ПОМОЩЬЮ УРАВНЕНИЙ ЛОГИСТИЧЕСКОЙ РЕГРЕССИИ
Обоснование. Разработка методик идентификации личности по костным останкам, адаптированных для диагностики населения Азербайджана, имеет приоритетное значение. Новый способ быстрого определения пола по зубам представляется востребованным, так как должен усилить эффективность работы судебных...
2022 / Ибрагимов Анар Шамистан Оглы, Мусаев Шакир Мазлум Оглы -
BESSEL POLYNOMIALS AND SOME CONNECTION FORMULAS IN TERMS OF THE ACTION OF LINEAR DIFFERENTIAL OPERATORS
In this paper, we introduce the concept of the Bα-classical orthogonal polynomials, where Bα is the raising operator Bα := x2⋅d∕dx+2(α-1)x+1I, with nonzero complex number α and I representing the identity operator. We show that the Bessel polynomials Bn(α)(x), n ≥ 0, where α≠ - m∕2, m ≥-2, m ∈ ℤ,...
2022 / Aloui Baghdadi, Souissi JihadScopusВАК -
OUTPUT CONTROLLABILITY OF DELAYED CONTROL SYSTEMS IN A LONG TIME HORIZON
In this paper, we consider the output controllability of finite-dimensional control systems governed by a distributed delayed control. For systems with ordinary controls, this problem was investigated earlier. Nevertheless, in many practical and technical problems the control acts with some delay....
2022 / Ananyev Boris I.ScopusВАК -
ON ONE INEQUALITY OF DIFFERENT METRICS FOR TRIGONOMETRIC POLYNOMIALS
We study the sharp inequality between the uniform norm and Lp(0,π∕2)-norm of polynomials in the system = {cos(2k + 1)x}k=0∞ of cosines with odd harmonics. We investigate the limit behavior of the best constant in this inequality with respect to the order n of polynomials as n → ∞ and provide a...
2022 / Arestov Vitalii V., Deikalova Marina V.ScopusВАК -
APPROXIMATE CONTROLLABILITY OF IMPULSIVE STOCHASTIC SYSTEMS DRIVEN BY ROSENBLATT PROCESS AND BROWNIAN MOTION
In this paper we consider a class of impulsive stochastic functional differential equations driven simultaneously by a Rosenblatt process and standard Brownian motion in a Hilbert space. We prove an existence and uniqueness result and we establish some conditions ensuring the approximate...
2022 / Benchaabane AbbesScopusВАК -
PERIODIC SOLUTIONS OF A CLASS OF SECOND ORDER NEUTRAL DIFFERENTIAL EQUATIONS WITH MULTIPLE DIFFERENT DELAYS
The present work mainly probes into the existence and uniqueness of periodic solutions for a class of second-order neutral differential equations with multiple delays. Our approach is based on using Banach and Krasnoselskii’s fixed point theorems as well as the Green’s function method. Besides, two ...
2022 / Khemis Rabah, Ardjouni Abdelouaheb, Bouakkaz AhlèmeScopusВАК -
RESTRAINED ROMAN REINFORCEMENT NUMBER IN GRAPHS
A restrained Roman dominating function (RRD-function) on a graph G = (V,E) is a function f from V into {0, 1, 2} satisfying: (i) every vertex u with f(u) = 0 is adjacent to a vertex v with f(v) = 2; (ii) the subgraph induced by the vertices assigned 0 under f has no isolated vertices. The weight of ...
2022 / Kosari Saeed, Sheikholeslami Seyed Mahmoud, Chellali Mustapha, Hajjari MaryamScopusВАК -
COMBINED ALGORITHMS FOR CONSTRUCTING A SOLUTION TO THE TIME-OPTIMAL PROBLEM IN THREE-DIMENSIONAL SPACE BASED ON THE SELECTION OF EXTREME POINTS OF THE SCATTERING SURFACE
A class of time-optimal control problems in three-dimensional space with a spherical velocity vector is considered. A smooth regular curve Γ is chosen as the target set. We distinguish pseudo-vertices that are characteristic points on Γ and responsible for the appearance of a singularity in the...
2022 / Lebedev Pavel D., Uspenskii Alexander A.ScopusВАК -
ON DISTANCE-REGULAR GRAPHS OF DIAMETER 3 WITH EIGENVALUE θ = 1
For a distance-regular graph Γ of diameter 3, the graph Γi can be strongly regular for i = 2 or 3. J. Kulen and co-authors found the parameters of a strongly regular graph Γ2 given the intersection array of the graph Γ (independently, the parameters were found by A.A. Makhnev and D.V. Paduchikh)....
2022 / Makhnev Alexander A., Belousov Ivan N., Efimov Konstantin S.ScopusВАК -
ANALYSIS OF THE GROWTH RATE OF FEMININE MOSQUITO THROUGH DIFFERENCE EQUATIONS
The mosquito life cycle is developed mathematically with the concept of difference equation. The qualitative properties of the life-cycle are analyzed. The Lyapunov function is defined for difference equation to stabilize the system of mosquito life cycle. A novel technique is applied for deriving...
2022 / Murugesan Regan, Kumaravel Sathish Kumar, Rasappan Suresh, Al Majrafi Wardah AbdullahScopusВАК -
INEQUALITIES PERTAINING TO RATIONAL FUNCTIONS WITH PRESCRIBED POLES
Let ℜn be the set of all rational functions of the type r(z) = p(z)∕w(z), where p(z) is a polynomial of degree at most n and w(z) = ∏ j=1n(z - aj), |aj| > 1 for 1 ≤ j ≤ n. In this paper, we set up some results for rational functions with fixed poles and restricted zeros. The obtained results bring...
2022 / Rather Nisar Ahmad, Wani Mohmmad Shafi, Dar IshfaqScopusВАК
