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Results tagged with sg.symplectic-geometry
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user 22810
Hamiltonian systems, symplectic flows, classical integrable systems
23
votes
4
answers
2k
views
What is an "integrable hierarchy"? (to a mathematician)
This is one of those "what is an $X$?" questions so let me apologize in advance.
By now I have already encountered the phrase "integrable hierarchy" in mathematical contexts (in particular the so cal …
- 7,799
8
votes
3
answers
837
views
What does the flow of the principal symbol of the differential operator tell us about the PDE?
Disclaimer: Let me apologize in advance for asking this slightly vague question
Let $M$ be a manifold and let $P$ be a partial differential operator acting on $C^{\infty}(M)$. Associated to $P$ there …
- 7,799