Papers by Alexander Losev
Вестник Волгоградского государственного университета. Серия 1: Математика. Физика, 2004
Инженерный вестник Дона, 2019
Проблемы управления, 2008
Differential Equations, Dec 1, 2017
The behavior of solutions of the Poisson equation on noncompact Riemannian manifolds of a special... more The behavior of solutions of the Poisson equation on noncompact Riemannian manifolds of a special form is studied. Sharp conditions for the unique solvability of the Dirichlet problem on the reconstruction of solutions of the Poisson equation from continuous boundary data at infinity are found.
Дифференциальные уравнения, 2017
Vestnik Volgogradskogo gosudarstvennogo universiteta. Serija 1. Mathematica. Physica, 2016
This paper is devoted to the development of technology advisory intelligent systems and artificia... more This paper is devoted to the development of technology advisory intelligent systems and artificial intelligence methods intended for analysis, modeling and interpretation of medical thermometer data. During the last decade 160 Интеллектуальный анализ многомерных термометрических данных
Региональная экономика. Юг России, Aug 1, 2019
The main purpose of this work is to develop a new financial and mathematical model for managing h... more The main purpose of this work is to develop a new financial and mathematical model for managing higher education institutions in conditions of normative per capita financing, as well as to elabora te a dynamic descriptive model, which would take into account the specificity of financial support for universities' educational and research activities in implementing project-based education programmes. The research has been carried out within one of the areas of education economics dealing with developing strategic financial management methods and algorithms. Over the past decade, there have been at least two major changes in the operating conditions of higher education institutions. Firstly, the principle of education institution financing has radically changed: from estimated budget financing to normative per capita one. Meanwhile, the vast majority of education institutions have yet not been able to realign their financial management systems according to new requirements. This problem is being addressed, inter alia, by developing new models and algorithms for financing all areas of university activities. Secondly, transition to new models of university complexes is currently under way. Thus, it has become necessary to build mathematical models for financing, staffing and administering university transformation into a regional centre of innovative, technological and social development. New approaches to resourcing relevant programmes are needed in order to establish an innovative and entrepreneurial university with an academic core and inter-disciplinary infrastructure which would provide staffing and intellectual support for developing region's high-tech economic and social sectors through the effective integration of science, education, industry, development institutions and nonprofit socially-oriented organizations. Addressing these two problems requires developing financial and mathematical models for financing, staffing and administering university transformation into the regional centre of innovative, technological and social development. This paper presents a dynamic economic and mathematical model for budgeting structural subdivisions of higher education institutions, which introduce project-based training into the educational process on the basis of the current educational standards, curricula and financial plans of education programmes, and the methodology of normative per capita financing. Key words: project-based education programme, normative per capita financing, budget of a structural subdivision of a higher education institution, algorithm of building the salary fund.
Lobachevskii Journal of Mathematics, Mar 1, 2022
Современные проблемы науки и образования, 2014
Вестник новых медицинских технологий, 2011
Вестник новых медицинских технологий, 2012
This article is about development of combined thermometry methodology basics in diagnosis of veno... more This article is about development of combined thermometry methodology basics in diagnosis of venous diseases. In this article the main aim was to find and verify the most important for an accurate diagnosis pathology features. The application of this features leads to 95% accuracy in diagnosis. Also, their use as a knowledge base will serve as an essential part in the creation of intelligent diagnostic system.
Вестник новых медицинских технологий, 2012
нижних конечностей с высокой точностью, что прежде всего важно для врача-флеболога, проводящего д... more нижних конечностей с высокой точностью, что прежде всего важно для врача-флеболога, проводящего диагностические мероприятия с помощью метода комбинированной термометрии. Полученный алгоритм диагностики важен как сам по себе, так и возможностью его применения в интеллектуальном комплексе диагностики венозных заболеваний.
Vestnik Volgogradskogo Gosudarstvennogo Universiteta. Serija 1. Mathematica. Physica, Dec 1, 2015
Ufa Mathematical Journal, 2013
This paper deals with the asymptotic behavior of positive solutions of certain forced fractional ... more This paper deals with the asymptotic behavior of positive solutions of certain forced fractional differential equations of the form () = () + (, ()), > 1, ∈ (0, 1), where () = (() ()) , 0 = ()/Γ(1) = (), and 0 is a real constant. From the obtained results, we derive a technique which can be applied to some related fractional differential equations.
arXiv (Cornell University), Dec 18, 2020
This work was done with the aim of developing the fundamental breast cancer early differential di... more This work was done with the aim of developing the fundamental breast cancer early differential diagnosis foundations based on modeling the space-time temperature distribution using the microwave radiothermometry method and obtained data intelligent analysis. The article deals with the machine learning application in the microwave radiothermometry data analysis. The problems associated with the construction mammary glands temperature fields computer models for patients with various diagnostics classes, are also discussed. With the help of a computer experiment, based on the machine learning algorithms set (logistic regression, naive Bayesian classifier, support vector machine, decision tree, gradient boosting, K-nearest neighbors, etc.) usage, the mammary glands temperature fields computer models set adequacy.
Vestnik Volgogradskogo Gosudarstvennogo Universiteta. Seriâ 3, Èkonomika,Èkologiâ, Nov 1, 2015
просп. Университетский, 100, 400062 г. Волгоград, Российская Федерация Аннотация. Данная статья п... more просп. Университетский, 100, 400062 г. Волгоград, Российская Федерация Аннотация. Данная статья посвящена дальнейшему развитию финансово-математических моделей управления образовательными организациями в условиях нормативно-подушевого финансирования, разрабатываемых в последние годы в работах В.В. Тараканова, С.А. Королькова, А.Г. Лосева и И.М. Решетниковой. А именно, в данном исследовании разработана дискриптивно-оптимизационная модель и соответствующая методика финансового обеспечения реализации эффективных контрак
Известия высших учебных заведений, 2021
We introduce the notion of an L -massive subset in a noncompact Riemannian manifold and study pro... more We introduce the notion of an L -massive subset in a noncompact Riemannian manifold and study properties of such subsets. It is proved that a semilinear elliptic equation on a noncompact Riemannian manifold has a nontrivial bounded solution if and only if there exists an L -massive subset in this manifold. A similar assertion is also proved for solutions of semilinear equations with finite energy integral.
Lobachevskii Journal of Mathematics, Nov 1, 2020
This article explores and develops opportunities Fourier method of separation of variables for th... more This article explores and develops opportunities Fourier method of separation of variables for the study of the asymptotic behavior of harmonic functions on noncompact Riemannian manifolds of a special form. These manifolds generalize spherically symmetric manifold and are called model ones in a series of works. In the first part of the paper, an estimate of the eigenfunctions of the Laplace operator is obtained on compact Riemannian manifolds $$S$$ in the norm $$C^{m}(S)$$ . In the second part of the paper, the conditions for the unique solvability of the Dirichlet problem for harmonic functions on model manifolds with smooth boundary data at ‘‘infinity’’ are found. It was shown that the solution of this boundary value problem converges to the boundary data in the $$C^{1}$$ -norm.
Vestnik Volgogradskogo Gosudarstvennogo Universiteta. Serija 1. Mathematica. Physica, Dec 1, 2016
Mathematical Methods in Technologies and Technics
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Papers by Alexander Losev