| 1. |
Invariant reduction for PDEs. III: Poisson brackets
K. P. Druzhkov
Cohomological geometry of differential equations
November 12, 2025 19:20
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| 2. |
A non-trivial conservation law with a trivial characteristic
K. P. Druzhkov
Cohomological geometry of differential equations
March 26, 2025 19:20
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| 3. |
Invariant reduction for PDEs. II: The general mechanism
K. P. Druzhkov
Cohomological geometry of differential equations
March 5, 2025 19:20
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| 4. |
Invariant reduction for PDEs. I: Conservation laws of 1+1 systems of evolution equations
K. P. Druzhkov
Cohomological geometry of differential equations
December 11, 2024 19:20
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| 5. |
Internal Lagrangians and gauge systems
K. P. Druzhkov
Cohomological geometry of differential equations
May 1, 2024 19:20
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| 6. |
Internal Lagrangians as variational principles
K. P. Druzhkov
Cohomological geometry of differential equations
September 20, 2023 19:20
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| 7. |
Lagrangian formalism and the intrinsic geometry of PDEs
K. P. Druzhkov
Cohomological geometry of differential equations
April 5, 2023 19:20
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| 8. |
Инварианты характеристик высших порядков и точные решения системы уравнений одномерной газовой динамики без градиентной катастрофы
A. V. Aksenov, K. P. Druzhkov
International Conference "Mathematical Methods of Mechanics" dedicated to the anniversary of academician A. G. Kulikovskii
March 20, 2023 12:20
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| 9. |
Симметрии, законы сохранения и точные решения одномерной системы уравнений мелкой воды над неровным дном
A. V. Aksenov, K. P. Druzhkov
Scientic seminar «Actual problems of geometry and mechanics » named after Prof. V.V. Trofimov
December 18, 2020 18:30
|
| 10. |
Extendable symplectic structures and the inverse problem of the calculus of variations for systems of equations written in an extended Kovalevskaya form
K. P. Druzhkov
Cohomological geometry of differential equations
June 29, 2020 15:00
|
| 11. |
Noether's theorem for diffeties
K. P. Druzhkov
Cohomological geometry of differential equations
February 5, 2020 19:20
|
| 12. |
Generalization of the inverse problem of variational calculus. A complete solution. Part 2
K. P. Druzhkov
Cohomological geometry of differential equations
November 27, 2019 19:20
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| 13. |
Generalization of the inverse problem of variational calculus. A complete solution. Part 1
K. P. Druzhkov
Cohomological geometry of differential equations
November 20, 2019 19:20
|
| 14. |
Гидродинамические законы сохранения одномерной и двумерной мелкой воды
K. P. Druzhkov
All-Russian conference "Modern Problems of Continuum Mechanics" devoted to 110 anniversary of L. I. Sedov
November 15, 2017 18:15
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