Timeline for Reference for a nice proof of "undetermined coefficients"
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
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| Sep 30, 2015 at 2:17 | history | edited | S. Carnahan♦ | CC BY-SA 3.0 |
coefficient matrix was not displaying properly due to triple backslashes
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| Apr 25, 2013 at 2:28 | answer | added | Oswaldo R B de Oliveira | timeline score: 2 | |
| Mar 16, 2013 at 18:08 | comment | added | Sungjin Kim | Basically, it is the same line with your proof, but instead solving the homogeneous equation $(D-q)^{m+1}L=0$. | |
| Mar 16, 2013 at 18:06 | comment | added | Ryan Reich | Ah. I think that boils down to Terry Tao's proof, then. | |
| Mar 16, 2013 at 18:02 | comment | added | Sungjin Kim | I see. BTW, that term "Method of annihilators" is: Further applying differential operator to make the nonhomogeneous term disappear. I like your proof here though. | |
| Mar 16, 2013 at 17:52 | comment | added | Ryan Reich | It is, but I don't know that term. I'm not really asking for a suggestion "what's the best proof of undetermined coefficients?"; I gave two others previously in the course. I was testing out this one, which is (in my opinion) a great advertisement for almost every technique and idea introduced to attack linear equations. | |
| Mar 16, 2013 at 17:50 | comment | added | Sungjin Kim | Is homogeneous case covered before this? Then the "Method of annihilators" works too. | |
| Mar 16, 2013 at 16:52 | history | edited | Ryan Reich | CC BY-SA 3.0 |
remove repetition
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| Mar 16, 2013 at 15:50 | answer | added | Terry Tao | timeline score: 16 | |
| Mar 16, 2013 at 14:44 | history | asked | Ryan Reich | CC BY-SA 3.0 |