Timeline for How is a Hamiltonian constructed from a Lagrangian with a Legendre transform
Current License: CC BY-SA 3.0
14 events
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| Dec 1, 2022 at 12:50 | comment | added | Carlos Carbonell Gisbert | You can use Lagrangian and Hamiltonian formalism not only for physics but also for microeconomics, of course. As it has been already said here, the question is to treat the case as a functional (not as a mere function) and this will require to begin from a variational principle from an action. Most of these cases are not conservative, but eou can prove that inflation dp/dx>0 leads to value H dissipation. | |
| Sep 10, 2017 at 0:21 | review | Suggested edits | |||
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| Apr 13, 2017 at 12:39 | history | edited | CommunityBot |
replaced http://physics.stackexchange.com/ with https://physics.stackexchange.com/
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| S Jun 12, 2013 at 16:40 | history | suggested | Alex Nelson | CC BY-SA 3.0 |
Fixed the LaTeX, plus some spelling errors
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| Jun 12, 2013 at 15:49 | review | Suggested edits | |||
| S Jun 12, 2013 at 16:40 | |||||
| Jun 12, 2013 at 9:48 | vote | accept | 0range | ||
| Jun 12, 2013 at 9:35 | answer | added | Trimok | timeline score: 15 | |
| Jun 12, 2013 at 8:14 | answer | added | ben | timeline score: 0 | |
| Jun 12, 2013 at 2:13 | history | edited | 0range | CC BY-SA 3.0 |
added 169 characters in body
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| Jun 12, 2013 at 2:04 | comment | added | 0range | It is a nonlinear programming Lagrangian similar to those you can see for instance here en.wikipedia.org/wiki/Lagrange_multiplier#Examples - basically it can be used for maximizing a target function $\ln(q)$ under the constraint $2q-10 \leq 0$ (the solution is obviously $q=5$). No it has no actual dynamics but a corresponding Hamiltonian must exist nevertheless and there must be a general way to obtain it no matter if the Lagrangian is actually dynamic or not. | |
| Jun 11, 2013 at 23:00 | comment | added | webb | Where did you get that Lagrangian? It has no actual dynamics... | |
| Jun 11, 2013 at 21:32 | answer | added | Mauchy | timeline score: -1 | |
| Jun 11, 2013 at 21:01 | review | First posts | |||
| Jun 11, 2013 at 21:31 | |||||
| Jun 11, 2013 at 20:45 | history | asked | 0range | CC BY-SA 3.0 |