Математика и физика. Mathematics & Physics. 2017 10 (1)

 

Recent Submissions

  • Zeros in Partition Function and Critical Behavior of Disordered Three Dimensional Ising Model 

    Vakilov, Andrey N.; Вакилов, Андрей Н. (Сибирский федеральный университет. Siberian Federal University, 2017-03)
    We used a Monte Carlo simulation of the structurally disordered three dimensional Ising model. For the systems with spin concentrations p = 0:95; 0:8; 0:6 and 0:5 we calculated the correlation-length critical exponent ...

  • Embedding Theorems for Functional Spaces Associated with a Class of Hermitian Forms 

    Peicheva, Anastasiya S.; Пейчева, Анастасия С. (Сибирский федеральный университет. Siberian Federal University, 2017-03)
    We prove embedding theorems into the scale of Sobolev-Slobodetskii spaces for functional spaces associated with a class of Hermitian forms. More precisely we consider the Hermitian forms constructed with the use of the ...

  • Nanodispersed Mg-based Powders Received in a Hydrogen-argon Plasma Flow and Estimation of their Application Prospects as Hydrogen Storage Materials 

    Melnikova, Evgenia I.; Kolonenko, Andrey L.; Glushenko, Gari A.; Vnukova, Natalya G.; Churilov, Grigory N.; Zhizhaev, Anatoly M.; Мельникова, Евгения И.; Колоненко, Андрей Л.; Глушенко, Гари А.; Внукова, Наталья В.; Чурилов, Григорий Н.; Жижаев, Анатолий М. (Сибирский федеральный университет. Siberian Federal University, 2017-03)
    Nanodispersed powders, consisting of Mg, Mg and Ni, Mg and Pd, were synthesized in a water-cooled chamber in a hydrogen-helium mixture at atmospheric pressure. Plasma generation was carried out in HF arc discharge in an ...

  • On the Nonparametric Identification and Dual Adaptive Control of Dynamic Processes 

    Medvedev, Alexander V.; Raskina, Anastasia V.; Медведев, Александр В.; Раскина, Анастасия В. (Сибирский федеральный университет. Siberian Federal University, 2017-03)
    A problem of nonparametric control of dynamic objects in discrete-continuous process is considered. The emphasis is placed on development of dual control non-parametric algorithms. Results of simulation ex- periment are ...

  • On the Limit Structure of Continuous-time Markov Branching Process 

    Imamov, Azamat A.; Имомов, Азам А. (Сибирский федеральный университет. Siberian Federal University, 2017-03)
    We study the limiting probability function of continuous-time Markov Branching Processes conditioned to be never extinct. Hereupon we obtain a new stochastic population process called the Markov Q-Process. The principal ...

  • Laser-induced Interaction of Multilevel Quantum Dots 

    Glushkov, Andrey A.; Slyusareva, Evgenia A.; Aleksandrovsky, Aleksander S.; Tsipotan, Aleksey S.; Slabko, Vitaliy V.; Глушков, Андрей А.; Слюсарева, Евгения А.; Александровский, Александр С.; Ципотан, Виталий В.; Слабко, Виталий В. (Сибирский федеральный университет. Siberian Federal University, 2017-03)
    A theoretical model is developed for describing the laser-induced interaction of a pair of multilevel semi- conductor quantum dots. Spectral dependencies of interaction energy are calculated in dipole-dipole ap- proximation ...

  • Numerical Simulation of Magnetic Microstructure in Nanocrystalline Thin Films with the Random Anisotropy 

    Belyaev, Boris A.; Izotov, Andrey V.; Solovev, Platon N.; Беляев, Борис А.; Изотов, Андрей В.; Соловьев, Платон Н. (Сибирский федеральный университет. Siberian Federal University, 2017-03)
    The magnetic structure of thin nanocrystalline films with a random distribution of magnetization easy axes was studied by means of micromagnetic modeling. The dependences of the correlation function parameters of the ...

  • A Formula for the Mean Length of the Longest Common Subsequence 

    Znamenskij, Sergej V.; Знаменский, Сергей В. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    The expected value E of the longest common subsequence of letters in two random words is considered as a function of the = jAj of alphabet and of words lengths m and n. It is assumed that each letter independently ...

  • Monte Carlo Simulation of Magnetic Multilayered Structures with the Effects of Giant Magnetoresistance 

    Romanovskiy, Dmitriy E.; Mamonova, Marina V.; Prudnikov, Vladimir V.; Prudnikov, Pavel V.; Романовский, Дмитрий Е.; Мамонова, Марина В.; Прудников, Владимир В.; Прудников, Павел В. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    Monte Carlo simulations of magnetic properties for structures, which are constructed from two ferro- magnetic films divided by nonmagnetic film, are carried out using the anisotropic Heisenberg model. The value for ...

  • Continual Approach in the Mean Field Theory of Incommensurate Magnetic States in the Frustrated Heisenberg Ferromagnet 

    Martynov, Sergey N.; Tugarinov, Vasiliy I.; Martynov, Aleksandr S.; Мартынов, Сергей Н.; Тугаринов, Василий И.; Мартынов, Александр С. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    The algorithm of approximate solution has been developed for the differential equation describing the anharmonical change of the spin orientation angle in the model of ferromagnet with the exchange compe- tition between ...

  • Ab Initio Investigation of the Spin-Reorientation Phase Transition in PrCo₅₋ₓNiₓ (x = 0-5) 

    Lukoyanov, Alexey V.; Лукоянов, Алексей В. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    The series PrCo₅₋ₓNiₓ (x = 0-5) was investigated within the LDA+U+SO method taking into account strong correlations and spin-orbit coupling in Pr-4f, as well as in Ni(Co)-3d states. We give a detailed description of total ...

  • On the Hierarchy of the Characteristic Lengths of Nanowires Magnetization 

    Ivanov, Anatoly A.; Orlov, Vitaly A.; Иванов, Анатолий А.; Орлов, Виталий А. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    Using computer simulation of magnetization in a polycrystalline ferromagnetic nanowire, we demonstrate the occurrence of the characteristic spatial scale in the distribution of magnetization unrelated to the domain wall ...

  • The Characteristics of Observation of the Non-uniform Magnetization on the Surface of the Thin Magnetic Films in Ta/CoFeB/MgO/CoFeB/Ta Multilayers 

    Djuzhev, Nikolay A.; Popkov, Anatoly F .; Makhiboroda, Maksim A.; Demin, Gleb D.; Kozmin, Aleksandr M.; Chinenkov, Maksim Y.; Дюжев, Николай А; Попков, Анатолий Ф.; Махиборода, Максим А.; Демин, Глеб Д.; Козьмин, Александр М.; Чиненков, Максим Ю. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    This work presents the results of the study of non-uniformly magnetized regions on the surface of thin magnetic films in multilayer magnetic tunnel junction (MTJ) structure Ta/CoFeB/MgO/CoFeB/Ta ob- served by highly ...

  • Nonlinear Magnetoelastic Dynamics of the Ferrite Plate 

    Asadullin, Fanur F.; Poleshchikov, Sergey M.; Pleshev, Dmitriy A.; Kotov, Leonid N.; Vlasov, Vladimir V.; Shavrov, Vladimir G.; Shcheglov, Vladimir I.; Асадуллин, Фанур Ф.; Полещиков, Сергей М.; Плешев, Дмитрий А.; Котов, Леонид Н.; Власов, Владимир В.; Шавров, Владимир Г.; Щеглов, Владимир И. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    The present work deals with investigation of features of a magnetization vector of nonlinear precession and elastic displacements close to ferromagnetic resonance in normal magnetized ferrite plate. The processes of ...

  • Properties of Magnetorheological Elastomers in Crossed AC and DC Magnetic Fields 

    Alekhina, Yuliya A.; Makarova, Ludmila A.; Rusakova, Tatyana S.; Semisalova, Anna S.; Perov, Nikolay S.; Алехина, Юлия А.; Макарова, Людмила А.; Русакова, Татьяна С.; Семисалова, Анна С.; Перов, Николай С. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    Dynamic properties of magnetorheological elastomers (MREs) with barium ferrite particles in the presence of crossed AC and DC magnetic fields were investigated. Calculations of the magnetic permeability were made based ...

  • Synthesis of Integrated One-stage Tracking Algorithm for GNSS and INS Based Attitude Estimation 

    Perov, Alexander I.; Перов, Александр И. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    In this article, the theory of optimal filtering of information processes is used to synthesize optimal one- stage estimation algorithm for the object orientation angles. The algorithm uses signals of the satellite navigation ...

  • Improving the Accuracy of the Probability Density Function Estimation 

    Dobronets, Boris S.; Popova, Olga A.; Добронец, Борис С.; Попова, Ольга А. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    The paper considers the new approach to the reconstruction of the probability density function similarly the averaged shifted histogram method. An algorithm is used Richardson’s extrapolation for increasing accuracy. We ...

  • The Inverse Problem for the Nonlinear Pseudoparabolic Equation of Filtration Type 

    Lyubanova, Anna Sh.; Любанова, Анна Ш. (Сибирский федеральный университет. Siberian Federal University, 2016-12)
    The paper discusses the correctness of the inverse problem on finding an unknown coefficient dependent on t in the nonlinear pseudoparabolic equation of the third order with an additional information on the boundary. The ...
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