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Mar
2 |
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awarded | Yearling |
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Mar
2 |
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awarded | Yearling |
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Feb
4 |
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accepted | Find all the functions which satisfy a given functional equation |
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Feb
2 |
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revised |
Find all the functions which satisfy a given functional equation edited body |
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Feb
2 |
|
comment |
Find all the functions which satisfy a given functional equation @DejanGovc I was editing while I received your post. Please check it again |
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Feb
2 |
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revised |
Find all the functions which satisfy a given functional equation added 123 characters in body |
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Feb
2 |
|
comment |
Find all the functions which satisfy a given functional equation @Alex did you assume $f(0)=0$ in your solution? Because then I'm pretty sure that $f(0)=-1$ is also possible. My apologies since I inverted $x,y$ in the first term of the equation. Please check the edited version. Still my apologies. BTW in this case setting $x=y=0$ gives $f(f(0))=f(0)^2+f(f(0))+f(0)$ from which $f(0)\in \{-1,0\}$. |
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Feb
2 |
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asked | Find all the functions which satisfy a given functional equation |
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Dec
5 |
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asked | Unusual Compact Embeddings |
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Nov
13 |
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asked | solution of Lagrange differential equation are square integrable |
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Nov
5 |
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revised |
Ordering of two weak star limits added 492 characters in body |
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Nov
5 |
|
comment |
Ordering of two weak star limits lol you are right... |
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Nov
5 |
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asked | Ordering of two weak star limits |
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Oct
29 |
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accepted | At most three different eigenvalues |
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Oct
29 |
|
comment |
At most three different eigenvalues @GerryMyerson I'm following the language introduced in the Birkhoff Rota Ordinary differential equation book and you can define the operator $L[u]=u'+q(x)u$ so for $\lambda$ to be an eigenvalue it means that $L[u]=\lambda u$ has a non trivial solution $u$. |
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Oct
29 |
|
comment |
At most three different eigenvalues @JuliánAguirre it is $u'$, it is a first order DE |
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Oct
29 |
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asked | At most three different eigenvalues |
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Oct
29 |
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comment |
airy equation vanish infinitely many times nice. Didn't know about this one. Can we solve the exercise without using that theorem? |
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Oct
29 |
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accepted | airy equation vanish infinitely many times |
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Oct
28 |
|
asked | airy equation vanish infinitely many times |
