Differential equations, dynamical systems and optimal control

ON THE APPLICATION OF LYAPUNOV'S QUADRATIC FUNCTIONS WITH GIVEN PROPERTIES FOR STUDYING THE STABILITY OF LAGGING SYSTEMS

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Research article

Besklubnaya A. V.

DOI:

https://doi.org/10.60797/IRJ.2026.165.20

EDN:

FJMCGM

Suggested:

03.12.2025

Accepted:

18.02.2026

Published:

17.03.2026

Issue: № 3 (165), 2026

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

241

On model solutions of the initial boundary value problem for the equation of vibrations of thermoelastic plates

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Research article

DOI:

https://doi.org/10.60797/IRJ.2025.158.92

EDN:

PMWNYF

Suggested:

06.04.2025

Accepted:

02.07.2025

Published:

18.08.2025

Issue: № 8 (158), 2025

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

811

DYNAMICS OF ECONOMIC PROCESSES IN ENTERPRISES BASED ON THE EXAMPLE OF THE MODEL SYSTEM OF PMR

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Research article

Orlova E. V.

Ershova E. V.

DOI:

https://doi.org/10.60797/IRJ.2025.158.103

EDN:

TAXEDU

Suggested:

07.03.2025

Accepted:

23.06.2025

Published:

18.08.2025

Issue: № 8 (158), 2025

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

483

TO THE THEORY OF FINDING INTEGRALS OF SYSTEMS OF DIFFERENTIAL EQUATIONS

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Research article

DOI:

https://doi.org/10.60797/IRJ.2025.155.48

EDN:

MQMUOB

Suggested:

17.02.2025

Accepted:

11.04.2025

Published:

16.05.2025

Issue: № 5 (155), 2025

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

721

On one method of discretisation of the Fisher-Kolmogorov-Petrovsky-Piskunov problem

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Research article

Barabash O. P.

DOI:

https://doi.org/10.60797/IRJ.2025.155.92

EDN:

RQZJLF

Suggested:

16.02.2025

Accepted:

05.05.2025

Published:

16.05.2025

Issue: № 5 (155), 2025

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

799

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