bio | website | wisdom.weizmann.ac.il/… |
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location | Israel | |
age | ||
visits | member for | 1 year, 11 months |
seen | Apr 13 at 13:06 | |
stats | profile views | 218 |
Jan 22 |
revised |
Determinant of $V^* V$ where $V$ is rectangular Vandermonde matrix with nodes on unit circle
Typo |
Jan 22 |
comment |
Determinant of $V^* V$ where $V$ is rectangular Vandermonde matrix with nodes on unit circle
Benjamin, thanks for the reference to Cauchy-Binet. However it does not seem to be helpful straight away. First notice that $N>k$ and thus the maximal minors would be $k\times k$. Second, these minors are definitely NOT the usual Vandermonde because they would involve non-consecutive powers of the $z$ variables. For instance, if $k=3$ and $N>5$ then there would be the minor $$\begin{pmatrix} z_1 & z_2 & z_3\\ z_1^3 & z_2^3 & z_3^3\\z_1^4 & z_2^4 & z_3^4 \end{pmatrix}.$$ |
Jan 22 |
revised |
Determinant of $V^* V$ where $V$ is rectangular Vandermonde matrix with nodes on unit circle
tag added |
Jan 22 |
asked | Determinant of $V^* V$ where $V$ is rectangular Vandermonde matrix with nodes on unit circle |
May 24 |
awarded | Yearling |
Apr 4 |
accepted | Constructing a linear ODE for a product of two holonomic functions without introducing additional singularities |
Apr 4 |
comment |
Constructing a linear ODE for a product of two holonomic functions without introducing additional singularities
Thanks Manuel! That kind of things is exactly what I needed. |
Mar 31 |
comment |
Constructing a linear ODE for a product of two holonomic functions without introducing additional singularities
Since my German is nonexistent, could you please pinpoint the location in the paper where they talk about the case of one singular point? Also, I couldn't figure out if they always assume that the solutions of the ODEs are entire functions... |
Mar 31 |
revised |
Constructing a linear ODE for a product of two holonomic functions without introducing additional singularities
spelling mistake |
Mar 29 |
asked | Constructing a linear ODE for a product of two holonomic functions without introducing additional singularities |
Dec 5 |
accepted | Smallest Lipschitz constant on non-convex domains |
Dec 5 |
comment |
Smallest Lipschitz constant on non-convex domains
Of course, should have figured this out myself. Thanks! |
Dec 5 |
asked | Smallest Lipschitz constant on non-convex domains |
Dec 4 |
awarded | Critic |
Dec 3 |
awarded | Commentator |
Dec 3 |
comment |
Approximation power of wavelets
OK, this is nice, thanks. I would really like to know, though, what happens for $d\geqslant 2$... |
Dec 3 |
revised |
Approximation power of wavelets
added 75 characters in body |
Dec 3 |
comment |
Approximation power of wavelets
+1 for the link. Still, this is for me very confusing. What if I want to approximate the function with accuracy $\epsilon$, how large should I take $k$ to be? Consequently, how many wavelet coefficients are needed? |
Dec 3 |
revised |
Approximation power of wavelets
added 76 characters in body |
Dec 3 |
revised |
Norm of inverse confluent Vandermonde matrix
retagged |