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14482
bio website ilorentz.org/beenakker
location Leiden, The Netherlands
age
visits member for 4 years
seen 15 mins ago
physicist at Leiden University

1d
answered A bit of history of Verdier duality
2d
comment ULU Decomposition of a matrix
there exists a proof of $g=u_1 l u_2 p$ (with unipotent upper/lower triangular $u_1,u_2/l$) for the case that $p$ is a permutation matrix times a constant, rather than a diagonal matrix: --- ac.els-cdn.com/S0024379596002406/… ---
Dec
13
reviewed Approve Fourier transform of $sin(\frac{1}{x})$ for $x > 0 (x > 1)$
Dec
8
revised Have there been any new developments in the Firoozbakht conjecture?
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Dec
8
revised Have there been any new developments in the Firoozbakht conjecture?
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Dec
8
revised Have there been any new developments in the Firoozbakht conjecture?
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Dec
8
answered Have there been any new developments in the Firoozbakht conjecture?
Dec
8
answered How to find American Mathematical Society Translations: Series 2 Volume 12 published in 1959
Dec
8
awarded  Enlightened
Dec
8
awarded  Nice Answer
Dec
2
accepted Quaternion Wishart matrices of half-integer dimension?
Dec
2
revised Geometrical interpretation of a Schrödinger operator
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Dec
2
comment Quaternion Wishart matrices of half-integer dimension?
yes, that does the trick, thank you very much!
Dec
2
awarded  Yearling
Dec
2
revised Geometrical interpretation of a Schrödinger operator
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Dec
2
answered Geometrical interpretation of a Schrödinger operator
Dec
1
asked Quaternion Wishart matrices of half-integer dimension?
Nov
27
comment translation invariance of the Laughlin wave function
On a sphere you'll want to specify the angular momentum $L$ of the wave function, which is rotational invariant for $L=0$, but not for $L\neq 0$. The ground state (for a given flux through the sphere) has $L=0$ and is rotational invariant.
Nov
26
comment Distribution of the $\alpha$-parameter of a $2\times 2$ Haar-distributed, unitary matrix
well, there is not much more than I write here; if you are interested in the Haar measure for a variety of parameterizations of different compact groups, you might take a look at Appendix B.1 of arxiv.org/abs/1405.3115
Nov
25
answered Distribution of the $\alpha$-parameter of a $2\times 2$ Haar-distributed, unitary matrix