Seminar talk, 9 February 2022: Difference between revisions
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Created page with "{{Talk | speaker = Sergey Agafonov | title = Darboux integrability for diagonal systems of hydrodynamic type | abstract = We prove that diagonal systems of hydrodynamic type a..." |
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| title = Darboux integrability for diagonal systems of hydrodynamic type | | title = Darboux integrability for diagonal systems of hydrodynamic type | ||
| abstract = We prove that diagonal systems of hydrodynamic type are Darboux integrable if and only if the Laplace transformation sequences of the system for commuting flows terminate, give geometric interpretation for Darboux integrability of such systems in terms of congruences of lines and in terms of solution orbits with respect to symmetry subalgebras, show that Darboux integrable systems are necessarily semihamiltonian, and discuss known and new examples. | | abstract = We prove that diagonal systems of hydrodynamic type are Darboux integrable if and only if the Laplace transformation sequences of the system for commuting flows terminate, give geometric interpretation for Darboux integrability of such systems in terms of congruences of lines and in terms of solution orbits with respect to symmetry subalgebras, show that Darboux integrable systems are necessarily semihamiltonian, and discuss known and new examples. | ||
| video = | | video = https://video.gdeq.net/GDEq-zoom-seminar-20220209-Sergey_Agafonov.mp4 | ||
| slides = | | slides = | ||
| references = | | references = | ||
| 79YY-MM-DD = 7977-97-90 | | 79YY-MM-DD = 7977-97-90 | ||
}} | }} | ||
Revision as of 20:17, 9 February 2022
Speaker: Sergey Agafonov
Title: Darboux integrability for diagonal systems of hydrodynamic type
Abstract:
We prove that diagonal systems of hydrodynamic type are Darboux integrable if and only if the Laplace transformation sequences of the system for commuting flows terminate, give geometric interpretation for Darboux integrability of such systems in terms of congruences of lines and in terms of solution orbits with respect to symmetry subalgebras, show that Darboux integrable systems are necessarily semihamiltonian, and discuss known and new examples.
Video