Recent Submissions

  • On the Stability of the Solutions of Inverse Problems for Elliptic Equations 

    Velisevich, Alexander V.; Lyubanova, Anna Sh.; Велисевич, Александр В.; Любанова, Анна Ш. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    The inverse problems on finding the unknown lower coefficient in linear and nonlinear second- order elliptic equations with integral overdetermination conditions are considered. The conditions of overdetermination are ...
  • Simulation of the Process of Frost Formation on the Surface of the Heat Exchanger Fin 

    Vasil’ev, Evgeniy N.; Васильев, Евгений Н. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    The paper considers the process of heat and mass transfer during the flow of moist air and formation of frost in the inter-fin space of an air heat exchanger at temperature below 0oC. The mathematical model is based on ...
  • On the p-fold Well-posedness of Higher Order Abstract Cauchy Problem 

    Toumi, Habiba; Nouar, Ahmed; Тоуми, Хабиба; Нуар, Ахмед (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    In this paper, we establish sufficient conditions for the p-fold well-posedness of higher-order abstract Cauchy problem. These conditions are expressed in terms of decay of some auxiliary pencils derived from the ...
  • On Periodic Bilinear Threshold GARCH models 

    Slimani, Walid; Lescheb, Ines; Cherfaoui, Mouloud; Слимани, Валид; Лешеб, Инес; Шерфауи, Мулуд (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    Periodic Generalized Autoregressive Conditionally Heteroscedastic (P GARCH) models were introduced by Bollerslev et Ghysels. These models have gained considerable interest and continued to attract the attention of ...
  • The Weighted Hardy Operators and Quasi-monotone Functions 

    Senouci, Abdelkader; Zanou, Abdelkader; Сенучи, Абделькадер; Зану, Абделькадер (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    Some Hardy-type inequalities are established by W. T. Sulaiman. The aim of this work is to extend these inequalities for weighted Hardy operators with quasi-monotone functions. Moreover some new integral weighted ...
  • Admissible Inference Rules of Temporal Intransitive Logic with the Operator "tomorrow" 

    Rimatsky, Vitaliy V.; Ganchukova, Olga V.; Римацкий, Виталий В.; Ганчукова, Ольга В. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    We investigates non-transitive temporal logic with the "tomorrow" operator. In this logic, the operator "necessary" 2 coincides with the operator “possible” 3 (or almost coincides in reflexive case). In addition to the ...
  • On the Collection Formulas for Positive Words 

    Leontiev, Vladimir M.; Леонтьев, Владимир М. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    For any formal commutator R of a free group F , we constructively prove the existence of a logical formula ER with the following properties. First, if we apply the collection process to a positive word W of the group F ...
  • Equilibrium Problem for a Kirchhoff-Love Plate Contacting by the Side Edge and the Bottom Boundary 

    Lazarev, Nyurgun P.; Rudoy, Evgeny M.; Nikiforov, Djulustan Ya.; Лазарев, Нюргун П.; Рудой, Евгений М.; Никифоров, Дулустан Я. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    A new model of a Kirchhoff–Love plate which is in contact with a rigid obstacle of a certain given configuration is proposed in the paper. The plate is in contact either on the side edge or on the bottom surface. A ...
  • The Impact of Inclination Angle and Thermal Load on Flow Patterns in a Bilayer System Taking into Account the Mass Transfer 

    Laskovets, Ekaterina V.; Makarov, Evgeniy E.; Ласковец, Екатерина В.; Макаров, Евгений Е. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    Bilayer convective flows of liquid and gas-vapor mixture in an inclined channel are modeled taking into account the heat and mass transfer at the thermocapillary interface. Mathematical modeling is based on the exact ...
  • On the Real Roots of Systems of Transcendental Equations 

    Kytmanov, Alexander M.; Khodos, Olga V.; Кытманов, Александр М.; Ходос, Ольга В. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    The work is devoted to finding the number of real roots of systems of transcendental equa- tions. It is shown that if a system has simple roots, then the number of real coordinates of the roots is the same. Therefore, ...
  • Some Properties of the Automorphisms of the Classical Domain of the First Type in the Space C [m X n] 

    Khudayberganov, Gulmirza Kh.; Erkinboev, Kutlimurot S.; Худайберганов, Гулмирза Х.; Эркинбоев, Кутлимурот С. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    In this article we obtain an analogue of Theorem 2.2.2 from Rudin’s book [6] for classical Cartan domains of the first type
  • Collatz Hypothesis and Planck’s Black Body Radiation 

    Fabiano, Nicola; Mirkov, Nikola; Stojan Radenovi´c; Фабиано, Никола; Мирков, Никола; Стоян Раденович (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    The Collatz conjecture is considered and the density of values is compared to Planck’s black body radiation, showing a remarkable agreement with each other. We also briefly discuss a generalisation of Collatz conjecture
  • Finding Power Sums of Zeros of an Entire Function of Finite Order of Growth 

    Djumabaev, Davlatbay; Джумабаев, Давлатбай (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    Formulas are given for finding power sums of zeros to a negative power for entire functions of finite order of growth
  • On the Bipolar Classification of Endomorphisms of a Groupoid 

    Litavrin, Andrey V.; Литаврин, Андрей В. (Journal of Siberian Federal University. Сибирский федеральный университет, 2024-05)
    In this paper, a method is obtained for calculating the bipolar type of endomorphism of an arbitrary groupoid. For groupoids with pairwise distinct left translations of elements, the described method for calculating the ...

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