meta user
network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year, 1 month |
| seen | Mar 23 at 21:37 | |
| stats | profile views | 35 |
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Jan 21 |
answered | Invertibility of laplacian operator |
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Jan 21 |
comment |
Invertibility of laplacian operator You are right, @Tomás. |
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Jan 14 |
comment |
Importance of Toeplitz operators? Thanks, @HaskellCurry, for your answer. This point is clear now. Your answer is enriching and I'll spend some time learning from it. |
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Jan 13 |
awarded | Critic |
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Jan 9 |
comment |
Importance of Toeplitz operators? @HaskellCurry Really nice answer. But here is a (maybe silly) question: You said "It now follows from Atkinson's Theorem that if $ f $ is invertible, then $ T_{f} $ is a Fredholm operator." Did you really mean "invertible"? Invertible from $ \mathbb{S}^{1}$ to $\mathbb{C} $ ? |
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Dec 8 |
comment |
Uniqueness existence for a PDE FALSE! Niemeyer is DEAD now. |
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Oct 29 |
accepted | Finite dimensional quotient $\Rightarrow$ closedness? |
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Oct 29 |
asked | Finite dimensional quotient $\Rightarrow$ closedness? |
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Oct 25 |
comment |
Redundant condition? What if the image is proper and dense? Thanks for your comment, @JonasMeyer. My question was "how many dimensions does $L^2/H^1$ have?" (or geometrically: how many dimensions are missing in $H^1$ to complete $L^2$ since $H^1$ is dense in $L^2$?) |
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Oct 25 |
comment |
Redundant condition? What if the image is proper and dense? Thanks for your comment, @bla. But $H^1(\Omega)$ is dense in $L^2(\Omega)$, what is the codimension of $H^1$? The answer you cited supposes finite codimension to begin with. |
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Oct 24 |
awarded | Editor |
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Oct 24 |
revised |
Redundant condition? What if the image is proper and dense? corrected spelling |
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Oct 23 |
asked | Redundant condition? What if the image is proper and dense? |
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Sep 25 |
awarded | Scholar |
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Sep 25 |
accepted | Green's function for periodic boundary condition |
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Sep 24 |
asked | Green's function for periodic boundary condition |
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Apr 25 |
awarded | Supporter |
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Apr 25 |
awarded | Teacher |
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Apr 25 |
awarded | Student |
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Apr 25 |
revised |
Convex hull of sets defined by (in)equalities Add tags |
