Search Results - Hristov Tsvetan

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  1. 1
    Singular solutions to Protter problem for Keldysh type equations

    Singular solutions to Protter problem for Keldysh type equations by Hristov Tsvetan

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  2. 2
    Mathematical Modeling and Short-Term Forecasting of the COVID-19 Epidemic in Bulgaria: SEIRS Model with Vaccination

    Mathematical Modeling and Short-Term Forecasting of the COVID-19 Epidemic in Bulgaria: SEIRS Model with Vaccination by Margenov, Svetozar, Popivanov, Nedyu, Ugrinova, Iva, Hristov, Tsvetan

    Published in Mathematics (Basel)
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  3. 3
    Computing the COVID-19 Basic and Effective Reproduction Numbers Using Actual Data: SEIRS Model with Vaccination and Hospitalization

    Computing the COVID-19 Basic and Effective Reproduction Numbers Using Actual Data: SEIRS Model with Vaccination and Hospitalization by Margenov, Svetozar, Popivanov, Nedyu, Hristov, Tsvetan, Koleva, Veneta

    Published in Mathematics (Basel)
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  4. 4
    Differential and Time-Discrete SEIRS Models with Vaccination: Local Stability, Validation and Sensitivity Analysis Using Bulgarian COVID-19 Data

    Differential and Time-Discrete SEIRS Models with Vaccination: Local Stability, Validation and Sensitivity Analysis Using Bulgarian COVID-19 Data by Margenov, Svetozar, Popivanov, Nedyu, Ugrinova, Iva, Hristov, Tsvetan

    Published in Mathematics (Basel)
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  5. 5
    Singular Solutions to a (3 + 1)-D Protter-Morawetz Problem for Keldysh-Type Equations

    Singular Solutions to a (3 + 1)-D Protter-Morawetz Problem for Keldysh-Type Equations by Schneider, Manfred, Nikolov, Aleksey, Hristov, Tsvetan, Popivanov, Nedyu

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  6. 6
    Singular solutions to the Protter-Morawetz problem for Keldysh-type equations involving lower order terms

    Singular solutions to the Protter-Morawetz problem for Keldysh-type equations involving lower order terms by Hristov, Tsvetan

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  7. 7
    An innovative model for integrating electronic assessment into differential equations education

    An innovative model for integrating electronic assessment into differential equations education by Hristov, Tsvetan

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  8. 8
    Singular solutions of 3-D Protter-Morawetz problem for weakly hyperbolic equations of Tricomi type

    Singular solutions of 3-D Protter-Morawetz problem for weakly hyperbolic equations of Tricomi type by Popivanov, Nedyu, Hristov, Tsvetan, Scherer, Rudolf

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  9. 9
    Mathematical and computer modeling of COVID-19 transmission dynamics in Bulgaria by time-depended inverse SEIR model

    Mathematical and computer modeling of COVID-19 transmission dynamics in Bulgaria by time-depended inverse SEIR model by Margenov, Svetozar, Popivanov, Nedyu, Ugrinova, Iva, Harizanov, Stanislav, Hristov, Tsvetan

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  10. 10
    Parameters identification and forecasting of COVID-19 transmission dynamics in Bulgaria with mass vaccination strategy

    Parameters identification and forecasting of COVID-19 transmission dynamics in Bulgaria with mass vaccination strategy by Margenov, Svetozar, Popivanov, Nedyu, Ugrinova, Iva, Harizanov, Stanislav, Hristov, Tsvetan

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  11. 11
    On the existence and uniqueness of a generalized solution of the Protter problem for (3+1)-D Keldysh-type equations

    On the existence and uniqueness of a generalized solution of the Protter problem for (3+1)-D Keldysh-type equations by Popivanov, Nedyu, Hristov, Tsvetan, Nikolov, Aleksey, Schneider, Manfred

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  12. 12
    Generalized solutions of Protter problem for (3+1)-D Keldysh type equations

    Generalized solutions of Protter problem for (3+1)-D Keldysh type equations by Hristov, Tsvetan, Nikolov, Aleksey, Popivanov, Nedyu, Schneider, Manfred

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  13. 13
    Protter problem for 3-D Keldysh type equations involving lower order terms

    Protter problem for 3-D Keldysh type equations involving lower order terms

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  14. 14
    Concept of Online Distance Learning System on Sustainable Development in the Cross-border Region

    Concept of Online Distance Learning System on Sustainable Development in the Cross-border Region by Antonova, Diana, Kunev, Svilen, Hristov, Tsvetan, MARINOV, Milko

    Published in TEM Journal
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  15. 15
    Mathematical and Computer Modeling of COVID-19 Transmission Dynamics in Bulgaria by Time-depended Inverse SEIR Model

    Mathematical and Computer Modeling of COVID-19 Transmission Dynamics in Bulgaria by Time-depended Inverse SEIR Model by Margenov, Svetozar, Popivanov, Nedyu, Ugrinova, Iva, Harizanov, Stanislav, Hristov, Tsvetan

    Published in arXiv.org
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