Математика список научных статей
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Gumbel Marshall-Olkin Lomax: A new distribution for reliability modelling
A new distribution for modeling the two approaches (physical and actuarial) of reliability problems is introduced. The statistical properties including the moments, mode, quantile function are derived. Some reliability measures including the mean residual life and hazard rate are derived. An...
2022 / Elebe E. Nwezza, Uchenna U. Uwadi, C.K. Acha, Christian Osagie -
Study on Acceptance Sampling Plan For Truncate Life Tests Based on Percentiles Using Gompertz Frechet Distribution
In this paper, Acceptance Sampling approaches useful for minimizing the cost and time of the submitted lots. In this busy world expect the Quality assurance and reliability of the product is very high. So, use the truncated life tests in acceptance sampling plan. Time truncated life tests in...
2022 / S. Jayalakshmi, S. Vijilamery -
EXPLICIT TIME DEPENDENT SOLUTION OF A TWO-STATE RETRIAL QUEUEING MODEL WITH HETEROGENOUS SERVERS
In this paper, two dimensional state retrial queueing system with two non identical parallel servers is considered. Incoming calls (primary calls) arrive at the server according to a Poisson process. Repeating calls also follows the same fashion. Service times of two servers follow exponential...
2022 / Neelam Singla, Sonia Kalra -
A Discrete Analogue of Teissier Distribution: Properties and Classical Estimation with Application to Count Data
This article presents a novel discrete distribution with a single parameter, called the discrete Teissier distribution. It is noted that this model, with one parameter, offers a high degree of fitting flexibility as it is capable of modelling equi-, over-, and under-dispersed, positive and negative ...
2022 / Bhupendra Singh, Varun Agiwal, Amit Singh Nayal, Abhishek Tyagi -
Costs of Age Replacement under Accelerated Life Testing with Censored Information
Accelerated life testing (ALTg) helps manufacturers to predict the various costs associated with the product under the warranty policy. The main aim of undertaking ALTg is the extended time of today’s manufactured goods, the small-time among design and make public, and the difficulty of analysis of ...
2022 / Intekhab Alam, Mohd Asif Intezar, Lalit Kumar Sharma, Mohammad Tariq Intezar, Aqsa Irfan -
CONSTRUCTION OF LIFE TEST SAMPLING INSPECTION PLANS BY ATTRIBUTES BASED ON MARSHALL OLKIN EXTENDED EXPONENTIAL DISTRIBUTION
A life test is a random experiment conducted on the manufactured items such as electrical and electronic components for estimating their life time based on the inspection of randomly sampled items. Life time of the items is a random variable which follows a specific continuous-type distribution,...
2022 / R. Vijayaraghavan, A. Pavithra -
Особенности проектирования жилого космического кластера «ЭкоКосмоДом» – миссия, цели, назначение
Проведено всестороннее исследование жилого космического кластера «ЭкоКосмоДом» (ЭКД) не только как составной части орбитального транспортно-инфраструктурного и индустриально-жилого комплекса «Орбита», но и как точки роста, вокруг которой будет постепенно выкристаллизовываться космическая индустрия. ...
2019 / Юницкий А.Э. -
МОДИФИЦИРОВАННЫЙ ГЕНЕТИЧЕСКИЙ АЛГОРИТМ ПОИСКА ГЛОБАЛЬНОГО ЭКСТРЕМУМА В СОЧЕТАНИИ С НАПРАВЛЕННЫМИ МЕТОДАМИ
В работе рассмотрен, модифицирован и апробирован стохастический метод поиска глобального экстремума, основанный на моделировании нормального распределения и обеспечивающий адаптацию ковариационной матрицы. Метод является итерационным, на его основе разработан генетический алгоритм. Координаты...
2022 / Овсянников Дмитрий Александрович, Владимирова Людмила Васильевна, Рубцова Ирина Деонисовна, Рубаник Алексей Витальевич, Пономарев Владимир АндреевичScopuszbMATHRSCIESCIВАКMathSciNet -
ДИСКРЕТНО-НЕПРЕРЫВНЫЕ СИСТЕМЫ С ПАРАМЕТРАМИ: МЕТОД УЛУЧШЕНИЯ УПРАВЛЕНИЯ И ПАРАМЕТРОВ
В работе представлен один из классов управляемых систем, способных к изменению своей структуры в течение времени. Общее название подобных систем - гибридные, в статье же рассматриваются так называемые дискретно-непрерывные системы, содержащие параметры. По своей сути это двухуровневая иерархическая ...
2022 / Расина Ирина Викторовна, Гусева Ирина СергеевнаScopuszbMATHRSCIESCIВАКMathSciNet -
POLYNOMIAL SPLINE COLLOCATION METHOD FOR SOLVING WEAKLY REGULAR VOLTERRA INTEGRAL EQUATIONS OF THE FIRST KIND
The polynomial spline collocation method is proposed for solution of Volterra integral equations of the first kind with special piecewise continuous kernels. The Gauss-type quadrature formula is used to approximate integrals during the discretization of the proposed projection method. The estimate...
2022 / Tynda Aleksandr, Noeiaghdam Samad, Sidorov DenisScopuszbMATHRSCIESCIВАКMathSciNet -
NUMERICAL EXPERIMENTS OF THE DUAL NULL FIELD METHOD FOR DIRICHLET PROBLEMS OF LAPLACE’S EQUATION IN ELLIPTIC DOMAINS WITH ELLIPTIC HOLES
Dual techniques have been used in many engineering papers to deal with singularity and ill-conditioning of the boundary element method (BEM). In the first part of the two-part article, our efforts were focused on studying the theoretical aspects of this problem, including the analysis of errors and ...
2022 / Li Zi-Cai, Huang Hung-Tsai, Zhang Li-Ping, Lempert Anna, Lee Ming-GongScopuszbMATHRSCIESCIВАКMathSciNet -
2-ELEMENTS IN AN AUTOTOPISM GROUP OF A SEMIFIELD PROJECTIVE PLANE
We investigate the well-known hypothesis of D.R. Hughes that the full collineation group of non-Desarguesian semifield projective plane of a finite order is solvable (the question 11.76 in Kourovka notebook was written down by N.D. Podufalov). The spread set method is used to construct the...
2022 / Kravtsova OlgaScopuszbMATHRSCIESCIВАКMathSciNet -
ON ENDOMORPHISMS OF THE ADDITIVE MONOID OF SUB-NETS OF A TWO-LAYER NEURAL NETWORK
Previously, for each multilayer neural network of direct signal propagation (hereinafter, simply a neural network), finite commutative groupoids were introduced, which were called additive subnet groupoids. These groupoids are closely related to the subnets of the neural network over which they are ...
2022 / Litavrin AndreyScopuszbMATHRSCIESCIВАКMathSciNet -
СИНТЕЗ ПОСЛЕДОВАТЕЛЬНОСТЕЙ С ИДЕАЛЬНЫМИ АВТОКОРРЕЛЯЦИОННЫМИ СВОЙСТВАМИ
Разработан метод синтеза последовательностей, обладающих идеальными автокорреляционными функциями. Приведен обзор существующих подходов, аналитический вывод требований к идеальным последовательностям, моделирование и синтез периодических последовательностей с учетом необходимости обеспечения...
2022 / Егоров В.В., Лобов С.А., Ходаковский В.А.ВАК -
АНАЛИТИЧЕСКАЯ МОДЕЛЬ НАДЁЖНОСТИ ВОССТАНАВЛИВАЕМОЙ ТЕХНИЧЕСКОЙ СИСТЕМЫ
Предлагается аналитическая модель, описывающая взаимосвязи параметров надежности технической системы и случайных моментов времени проведения профилактических работ, которые определяют конечное число состояний системы.
2022 / Юсупбеков А.Н., Хайдаров Ш.А., Абдижалилов Ж.Ш. -
ПОСЛЕДОВАТЕЛЬНЫЙ МЕТОД РАЗРЕЗАНИЯ ГРАФА С МИНИМИЗАЦИЕЙ ВНЕШНИХ СВЯЗЕЙ
В работе описан последовательный метод разрезания графа на куски с одновременной минимизацией внешние связи между полученными кусками. Метод позволяет за короткое время получить оптимальный результат, который ранее мог быть получен только при использовании итерационных методов, обладающих невысокой ...
2003 / Шандриков Анатолий Сергеевич -
NONUNIFORM SUPER WAVELETS IN 𝐿2(K)
In this paper, we introduce the structure of nonuniform super wavelets over local fields. We shall also provide the characterization of nonuniform parseval frame, nonuniform semi-orthogonal pareseval multiwavelets, and nonuniform super wavelets over local fields.
2022 / Ahmad O., Ahmadini Abdullah A. H., Ahmad M.WOSScopusВАКMathSciNet -
SUBORDINATION RESULTS FOR A FRACTIONAL INTEGRAL OPERATOR
In this paper, we establish several differential subordinations regarding the operator Dz-λ SRm,n defined using the fractional integral of the differential operator SRm,n, obtained as a convolution product of Sălăgean operator Sm and Ruscheweyh derivative Rn . By means of the newly obtained...
2022 / Lupaş A. AlbWOSScopusВАКMathSciNet -
A BALL COMPARISON BETWEEN EXTENDED MODIFIED JARRATT METHODS UNDER THE SAME SET OF CONDITIONS FOR SOLVING EQUATIONS AND SYSTEMS OF EQUATIONS
In this paper, we compare the radii of convergence of Jarratt-type methods under the same set of conditions for solving nonlinear equations and systems of equations. Our convergence analysis is based on the first Fréchet derivative that only appears on the method. Numerical examples where the...
2022 / Argyros I. K., George S., Argyros C.WOSScopusВАКMathSciNet -
A MULTIVALUED FIXED POINT RESULT WITH ASSOCIATED DATA DEPENDECE AND STABILITY STUDY
In this paper, our primary result is on the existence of non-empty fixed point sets for a new multivalued function defined here. An admissibility condition is also postulated and used in the main theorem. In two separate sections, we present data dependence and stability results for the non-empty...
2022 / Choudhury B. S., Metiya N., Kundu S.WOSScopusВАКMathSciNet