Математика список научных статей

Ushbu maqolada shu kunga qadar topologiya fanining ochiq muammolaridan biri τ-chegaralangan fazolarning T2 (Hausdorff fazosi) shartni qanoatlantirsa, T3 (Regulyar fazo) ham bo’lishi isbotlangan va T4 (Normal fazo) bo’lmasligiga qarshi misol ko’rsatilgan va lokal kuchsiz zichlik va lokal zichlik...

Внедрение технологий бережливого производства является достаточно распространенным как в производственных, так и в офисных процессах. Одним из популярных и действенных lean-инструментов на сегодняшний день является каракури. В статье рассматривается история, описание и примеры применения этого...

Bul maqalada awıspalı argumentke iye dara tuwındılı differenciallıq teńlemeler ushın baslanǵısh shegaralıq máseleler úyrenilgen bolıp, pikir hám usınıslar ilimiy dálillengen.

В свят с постоянно растущими объемами перевозок на железнодорожном транспорте время погрузки угля в полувагоны играет важную роль при составлении технологических танов работы углепогрузочных станций и предприятий, что сказывается на времени простоя подвижных единиц и погрузочных установок. В данной ...

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Main purpose of the present work is development of qualitative theory of difference equations in the space of bounded numeric sequences. Main result is the establishment of necessary conditions of the existence of invariant toroidal manifolds for countable systems of differential and difference...

The article is devoted to the study of some classical algorithms for transport routing problems. The article describes the existing classical transport routing algorithms, such as the Clark-Wright algorithm and its extended algorithm. The main minus of Clarke-Wright’s algorithm has been revealed,...

The purpose of this article is to develop the necessary mathematical description of the method of the uncentered principal component analysis for the optimization of the genetic algorithm. A secondary goal is to evaluate the approximations for its application for HEP data analysis and to develop...

An analysis of research process indicates that it comprises in combination, the following elements: creative mentalities, properly defined problems, semantic problem –solving procedures, and certain types of possible solutions. All these elements are necessary and sufficient. Therefore, the most...

The method of sequential approximations (MSA) in mathematical theory (MT) of transversal-isotropic shallow shells of arbitrary thickness is developed. MT takes into account all components of stress-strain state (SSS). SSS and boundary conditions are considered to be functions of three variables....

This abstract discusses the process of solving a differential equation of parabolic type by the finite difference method. The method is based on discretization of space and time, approximation of derivatives and subsequent calculation of function values on a grid. The solution of a system of...

In this article, the introduction of intelligent control of the state of parameters in digital power grids. When new realities arise in our lives, the first thing we do is agree on names and terminology. It is impossible to have a discussion if its participants understand different processes under...

Тасвирларни таниб олиш масаласи улардаги объектларни ажратишини қай даражада амалга оширилганлигига боғлиқ. Объектларни ажратиш эса одатда контур ажратиш алгоритмлари асосида амалга оширилади. Бундаобъект контурларини ингичкалаштириш алгоритмларини ишлаб чиқиш ва такомиллаштириш долзарб, илмий ва...

The article provides detailed information about the concept of integral and the history of its origin. In addition to the Riemann integral, which is covered in the school program, a number of other integrals (Riemann-Stiltes, Daniell, Alfred Haar, Henstock-Kurzweil, Ito and Stratonovich, Chokvet)...

The solution of the Navier-Stokes equations for a viscous incompressible fluid in an unbounded domain has important applications in medicine, particularly in simulating blood flow in the heart and veins. In this scenario, the annotation may be stated as follows: this research focuses on the...

Ushbu maqolada transport oqimlarini modelllashtirishda PTV Vissim dasturining imkoniyatlar tasvirlangan. Termiz shahrining A.Navoiy va at-Termiziy ko‘chalari kesishmasidan hosil bo‘lgan markaziy chorraha misolida tartibga solingan chorrahaning modeli ishlab chiqish asoslari bayon etilgan. Bunda...

Мақола методик характерга эга бўлиб, қишлоқ хўжалиги экинлари ҳосилдорлигида ўрганилаётган танланманинг ҳажми кичик бўлганда, нуқтавий статистик баҳо аниқлиги камаяди. Янги яратилган нав бўйича кўпи билан 3-5 йил тажриба утказилганидан, асосан кичик ҳажмли танланма тўпламлар билан ишланади, бундай...

The presented article discusses the Fourier method of separation of variables for solving the Laplace equation in a rectangular domain with Neumann boundary conditions. The main stages of this method are subsequently revealed:1.Representation of the general solution of the Laplace equation in a...

This work examines the problem of ill-posed problems, which often arise in various fields of science and practice. Ill-posed problems are characterized by the lack of a unique solution, sensitivity to changes in input data, and instability of the solution. The aim of the work is to study the...

Axborot texnologiyalarining atrof-muhitga ta'siri va ulardan foydalanishning salbiy oqibatlari o'rganiladi. Odamlarga yerning ekologik holatini yaxshilashga yordam berish uchun axborotdan foydalanishning asosiy yo'nalishlari ham taklif etiladi.

The article is devoted to the problem of multi criteria decision making under linguistic uncertainty. Information of different approaches for modelling linguistic uncertainty have been analyzed. The concept of znumbers proposed by L. Zadeh have been presented. Z-number is presented as cortege of...