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  1. Article ; Online: Transition between metastable equilibria: Applications to binary-choice games.

    Antonov, A / Leonidov, A / Semenov, A

    Physical review. E

    2023  Volume 108, Issue 2-1, Page(s) 24134

    Abstract: Transitions between metastable equilibria in the low-temperature phase of dynamical Ising game with activity spillover are studied in the infinite time limit. It is shown that exponential enhancement due to activity spillover, which takes place in finite- ...

    Abstract Transitions between metastable equilibria in the low-temperature phase of dynamical Ising game with activity spillover are studied in the infinite time limit. It is shown that exponential enhancement due to activity spillover, which takes place in finite-time transitions, is absent in the infinite time limit. In order to demonstrate that, the analytical description for infinite time trajectory is developed. An analytical approach to estimate the probability of transition between metastable equilibria in the infinite time limit is introduced and its results are compared with those of kinetic Monte Carlo simulation. Our study sheds light on the dynamics of the Ising game and has implications for the understanding of transitions between metastable states in complex systems.
    Language English
    Publishing date 2023-09-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2844562-4
    ISSN 2470-0053 ; 2470-0045
    ISSN (online) 2470-0053
    ISSN 2470-0045
    DOI 10.1103/PhysRevE.108.024134
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  2. Article: Interconnected Evolution of Epidemic and Public Vaccination Opinion.

    Leonidov, A V / Vasilyev, S B / Vasilyeva, E E

    JETP letters

    2022  Volume 117, Issue 1, Page(s) 83–89

    Abstract: A new model of interconnected coevolving SIRS epidemic and public vaccination opinion pattern is presented. The underlying two-layer network contains strata corresponding to physical interactions in real space and social communications. The layer ... ...

    Abstract A new model of interconnected coevolving SIRS epidemic and public vaccination opinion pattern is presented. The underlying two-layer network contains strata corresponding to physical interactions in real space and social communications. The layer corresponding to physical interactions is constructed based on data on a real network representing communications between high school students. The evolution of people vaccination attitude is described using an Ising-type model. The model describes a non-trivial dependence of resulting epidemic dynamics on (1) noise amplitude, (2) initial opinion pattern and (3) influence of external information.
    Language English
    Publishing date 2022-12-26
    Publishing country Russia (Federation)
    Document type Journal Article
    ZDB-ID 1472906-4
    ISSN 1090-6487 ; 0021-3640
    ISSN (online) 1090-6487
    ISSN 0021-3640
    DOI 10.1134/S0021364022602172
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  3. Article ; Online: Communities in world input-output network: Robustness and rankings.

    Kireyev, Alexei / Leonidov, Andrey / Radionov, Stanislav / Vasilyeva, Ekaterina

    PloS one

    2022  Volume 17, Issue 4, Page(s) e0264623

    Abstract: We introduce a method for assessing the robustness of community detection and apply it to a world input-output network (WION) to obtain economically plausible results. This method enabled us to rank communities in the WION in terms of their robustness ... ...

    Abstract We introduce a method for assessing the robustness of community detection and apply it to a world input-output network (WION) to obtain economically plausible results. This method enabled us to rank communities in the WION in terms of their robustness and stability. The algorithmic assignment variability index proposed in this study is shown to have predictive power in terms of forthcoming community rearrangement. We also provide several new approaches for identifying key economic communities. These approaches are based on the application of several centrality measures to a synthetic network in which nodes represent WION communities. Using these methods, we show that in 2000-2014, United States and Japan-centered communities demonstrated decreasing trends, while the importance of the China-centered community predominantly increased. A notable feature of the Germany-centered community rank evolution is that its influence grew only as a result of the inclusion of the Netherlands and Belgium in 2013.
    MeSH term(s) Algorithms ; Belgium ; China ; Germany ; Japan ; Netherlands ; Residence Characteristics
    Language English
    Publishing date 2022-04-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0264623
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  4. Article: [Model of control of diurnal melatonin secretion by the solar radiation].

    Leonidov, A V

    Biofizika

    2014  Volume 59, Issue 4, Page(s) 805–821

    Abstract: The mathematical model of the control process of diurnal melatonin secretion under the influence of solar radiation on retina photoreceptors is proposed. Invariant relations for calculating melatonin secretion rate and its concentration in blood plasma ... ...

    Abstract The mathematical model of the control process of diurnal melatonin secretion under the influence of solar radiation on retina photoreceptors is proposed. Invariant relations for calculating melatonin secretion rate and its concentration in blood plasma are obtained. Spectral, time and energy characteristics of solar radiation synchronizing diurnal melatonin secretion and circadian rhythms in human are defined. A possibility of using the relations obtained is shown for arbitrary combination of calendar dates, local time of any time zone and geographical coordinates of a calculated point on earth surface. The adequacy of model is confirmed by coincidence of the calculation data with the results of independent experimental studies on diurnal secretion of melatonin and circadian rhythm in human. The model proposed can be used during investigation of diurnal secretion of melatonin and circadian rhythm in human.
    MeSH term(s) Circadian Clocks/physiology ; Humans ; Melatonin/secretion ; Models, Biological ; Sunlight
    Chemical Substances Melatonin (JL5DK93RCL)
    Language Russian
    Publishing date 2014-07
    Publishing country Russia (Federation)
    Document type English Abstract ; Journal Article
    ZDB-ID 280283-1
    ISSN 0006-3029
    ISSN 0006-3029
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    In stock of ZB MED Cologne/Königswinter

    Zs.B 777: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  5. Book ; Online: Ising Game on Graphs

    Leonidov, Andrey / Savvateev, Alexey / Semenov, Andrew G.

    2021  

    Abstract: Static equilibria and dynamic evolution in noisy binary choice (Ising) games on graphs are considered. Equations defining static quantal response equilibria (QRE) for Ising games on graphs with arbitrary topology and noise distribution are written. It is ...

    Abstract Static equilibria and dynamic evolution in noisy binary choice (Ising) games on graphs are considered. Equations defining static quantal response equilibria (QRE) for Ising games on graphs with arbitrary topology and noise distribution are written. It is shown that in the special cases of complete graph and arbitrary noise distribution, and circular and star topology and logistic noise distribution the resulting equations can be cast in the form coinciding with that derived in the earlier literature. Explicit equations for non-directed random graphs in the annealed approximation are derived. It is shown that the resulting effect on the phase transition is the same as found in the literature on phase transition in the mean-field versions of the Ising model on graphs . Evolutionary Ising game having the earlier described QRE as its stationary equilibria in the mean field approximation is constructed using the formalism of master equation for the complete, star, circular and random annealed graphs and the formalism of population games for random annealed graphs.

    Comment: arXiv admin note: substantial text overlap with arXiv:1912.09584
    Keywords Physics - Physics and Society ; Condensed Matter - Statistical Mechanics ; Computer Science - Computer Science and Game Theory
    Subject code 519
    Publishing date 2021-07-20
    Publishing country us
    Document type Book ; Online
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  6. Book ; Online: Thick GaN film stress-induced self-separation

    Voronenkov, Vladislav / Leonidov, Andrey / Lelikov, Yuri / Zubrilov, Andrey / Shreter, Yuri

    2019  

    Abstract: Cracking of thick GaN films on sapphire substrates during the cooling down after the growth was studied. The cracking was suppressed by increasing the film-to-substrate thickness ratio and by using an intermediate carbon buffer layer, that reduced the ... ...

    Abstract Cracking of thick GaN films on sapphire substrates during the cooling down after the growth was studied. The cracking was suppressed by increasing the film-to-substrate thickness ratio and by using an intermediate carbon buffer layer, that reduced the binding energy between the GaN film and the substrate. Wafer-scale self-separation of thick GaN films has been demonstrated.

    Comment: Published in Proceedings of the 2019 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus)
    Keywords Condensed Matter - Materials Science
    Publishing date 2019-02-09
    Publishing country us
    Document type Book ; Online
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  7. Article: Long memory in stock trading

    Leonidov, Andrei

    International journal of theoretical and applied finance Vol. 7, No. 7 , p. 879-885

    2004  Volume 7, Issue 7, Page(s) 879–885

    Author's details Andrei Leonidov
    Keywords Wertpapierhandel ; Aktienmarkt ; Zeitreihenanalyse ; Schätzung ; Russland ; Ökonophysik ; Statistische Verteilung
    Language English
    Size graph. Darst
    Publisher World Scientific
    Publishing place River Edge, NJ [u.a.]
    Document type Article
    ZDB-ID 1428982-9
    Database ECONomics Information System

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  8. Article: Novi tendencii v ikonomičeskija rastež na ES i SA ŠČ: komparativen analiz

    Leonidov, Atanas

    Ikonomičeski izsledvanija Vol. 13, No. 2 , p. 3-29

    2004  Volume 13, Issue 2, Page(s) 3–29

    Author's details Atanas Leonidov
    Keywords Wirtschaftslage ; Wirtschaftswachstum ; Vergleich ; EU-Staaten ; USA
    Language Bulgarian
    Size graph. Darst
    Publisher Izd. na Bălgarskata Akad. na Naukite
    Publishing place Sofija
    Document type Article
    Note Zsfassung in engl. Sprache
    ZDB-ID 91588-9
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  9. Article: "Novata ikonomika"

    Leonidov, Atanas

    Ikonomičeski izsledvanija Vol. 12, No. 2 , p. 3-33

    2003  Volume 12, Issue 2, Page(s) 3–33

    Author's details Atanas Leonidov
    Keywords Wirtschaftswachstum ; Arbeitsproduktivität ; Theorie ; USA ; New Economy
    Language Bulgarian
    Publisher Izd. na Bălgarskata Akad. na Naukite
    Publishing place Sofija
    Document type Article
    Note In kyrill. Schr., bulg. ; Zsfassung in engl. Sprache u.d.T.: "The new economy"
    ZDB-ID 91588-9
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  10. Article: Kăm ikonomičeska teorija na transformacijata

    Leonidov, Atanas

    Problemi na ikonomikite v prechod , p. 144-160

    2000  , Page(s) 144–160

    Author's details Atanas Leonidov
    Keywords Systemtransformation ; Theorie
    Language Bulgarian
    Publisher Paradigma
    Publishing place Sofija
    Document type Article
    Note In kyrill. Schr., bulg
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