Zobrazeno 1 - 10
of 1 648
pro vyhledávání: '"the system of equations"'
Publikováno v:
Известия Иркутского государственного университета: Серия "Математика", Vol 50, Iss 1, Pp 51-65 (2024)
In this paper, we consider the loaded negative order nonlinear Schrodinger equation (NSE) in the class of periodic functions. It is shown that the loaded negative order nonlinear Schrodinger equation can be integrated by the inverse spectral problem
Externí odkaz:
https://doaj.org/article/f71312a48ed44fc8a573d3a5964594f3
Publikováno v:
Автоматизация технологических и бизнес-процессов, Vol 16, Iss 3, Pp 118-125 (2024)
Abstract. The canonical task of regression analysis consists in studying the problem of estimation and mathematical description of the influence caused by one or more independent variables (predictors, explanatory variables) on the dependent (explain
Externí odkaz:
https://doaj.org/article/c6ffd0d1ce894800b9dedc24493c505e
Publikováno v:
Vestnik MGSU, Vol 19, Iss 9, Pp 1469-1483 (2024)
Introduction. Compressed steel-reinforced concrete structures, due to the requirements of reduced cross-sectional dimensions for vertical load-bearing structures with high strength and rigidity of structures, as well as their fire resistance, are wid
Externí odkaz:
https://doaj.org/article/6b2af30e2cc7431384a10192dee3684d
Autor:
Deepak Khantwal, Rajendra Pant
Publikováno v:
Applied General Topology, Vol 25, Iss 1, Pp 159-174 (2024)
This paper presents some existence and uniqueness results for a system of mappings on the finite product of metric spaces. Our results extend and generalize the well-known and celebrated results of Boyd and Wong [Proc. Amer. Math. Soc. 20 (1969)], Ma
Externí odkaz:
https://doaj.org/article/2bb73302c7b54e41ba698406f480c7ce
Publikováno v:
Akademičnij Oglâd, Vol 2, Iss 59, Pp 173-189 (2023)
The article examines the effects of changes in the activity of domestic business during the war, as a result of the system of unfavorable factors. The authors analyze the possibilities of using different types of mathematical models to reproduce th
Externí odkaz:
https://doaj.org/article/527a7fa44ea4481f862e781fdf4f2031
Publikováno v:
AIMS Mathematics, Vol 8, Iss 7, Pp 16584-16598 (2023)
Fixed point theory can be generalized to cover multidisciplinary areas such as computer science; it can also be used for image authentication to ensure secure communication and detect any malicious modifications. In this article, we introduce the not
Externí odkaz:
https://doaj.org/article/d60a6d8cd43843ea97be23b02f7785de
Publikováno v:
AIMS Mathematics, Vol 8, Iss 6, Pp 13984-14007 (2023)
In this paper, we mainly study the equivalence and computing between Nash equilibria and the solutions to the system of equations. First, we establish a new equivalence theorem between Nash equilibria of -person noncooperative games and solutions of
Externí odkaz:
https://doaj.org/article/0b37f263fa6c46ad9a7ee0b90dccfaa2
Autor:
Andrey O. Lapich, Mikhail Yu. Medvedik
Publikováno v:
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 4 (2023)
Background. The purpose of the study is to construct a nonlinear electromagnetic field inside the waveguide. We assume that the body is located in a semi-infinite rectangular waveguide and that an electromagnetic field propagates inside the body. Ite
Externí odkaz:
https://doaj.org/article/d36789e22576460d915b4fb9076006fc
Autor:
Andrey O. Lapich, Mikhail Yu. Medvedik
Publikováno v:
Модели, системы, сети в экономике, технике, природе и обществе, Iss 4 (2023)
Background. The aim of the work is to develop methods for non-invasive determination of dielectric parameters of inhomogeneities inside the body. This problem arises in acoustics, electrodynamics, flaw detection, and also in medicine. Materials and m
Externí odkaz:
https://doaj.org/article/dae2ed95a6a44296ac289c01bb980e92
Autor:
Оlena Bochko, Nataliia Kosar, Nataliia Kuzo, Olena Zarichna, Nataliya Hryniv, Yuliia Savchenko
Publikováno v:
Фінансово-кредитна діяльність: проблеми теорії та практики, Vol 5, Iss 52 (2023)
The article analyzes economic phenomena and processes in the dairy market of Ukraine and identifies the main factors affecting them. Based on constructing an equations system, the existence of direct and inverse relationships between the determining
Externí odkaz:
https://doaj.org/article/e2b99cc72bba4fc6b92181535b54560b