bio  website  ilorentz.org/beenakker 

location  Leiden, The Netherlands  
age  
visits  member for  4 years, 3 months 
seen  13 mins ago  
stats  profile views  5,230 
physicist at Leiden University
13h

comment 
What is $\int (1e^{x})^n dx$?
$\int(1e^{x})^n\,dx=x\sum_{p=1}^n\tfrac{1}{p}(1e^{x})^p$ 
19h

comment 
Applications of set theory in physics
the journal may be controversial, but it's the author that counts, isn't it? en.wikipedia.org/wiki/Bruno_Augenstein  many of these issues have also been addressed here mathoverflow.net/questions/27428/… and here mathoverflow.net/questions/10334/… 
21h

revised 
Texts about Dwork's work
corrected English 
22h

comment 
Applications of set theory in physics
Links between Physics and Set Theory: sciencedirect.com/science/article/pii/S0960077996000550 a rather exhaustive discussion (with over 100 references) has been given by Augenstein in this paper, perhaps you'll want to focus your question a bit on one particular aspect? 
2d

revised 
How can we interpret the eigenvalues and eigenvectors of Euclidean Distance Matrices?
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2d

revised 
How can we interpret the eigenvalues and eigenvectors of Euclidean Distance Matrices?
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2d

revised 
How can we interpret the eigenvalues and eigenvectors of Euclidean Distance Matrices?
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2d

answered  How can we interpret the eigenvalues and eigenvectors of Euclidean Distance Matrices? 
2d

comment 
why can't taylor series capture memory effects?
scholarpedia.org/article/Volterra_and_Wiener_serieshttp://… 
Mar 25 
comment 
Expectation of Gaussian random vector & arbitrary function thereof?
you have to evaluate this boundary term at infinity, where it vanishes exponentially fast (assuming f(x) does not blow up at infinity, but then the average is not defined) 
Mar 24 
revised 
Expectation of Gaussian random vector & arbitrary function thereof?
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Mar 24 
revised 
Expectation of Gaussian random vector & arbitrary function thereof?
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Mar 24 
answered  Expectation of Gaussian random vector & arbitrary function thereof? 
Mar 23 
comment 
Geometric interpretation for partial trace?
a physics interpretation is that the partial trace is the way one obtains marginal probability distributions in quantum mechanics: the density matrix $\rho$ describes the probability distribution $P_{X,U}$ of the combined systems $X$ and $U$ and by performing the partial trace over $U$ one obtains a new density matrix $\rho_X$ that describes the marginal distribution $P_X$ of system $X$ alone; this is not the geometric interpretation you are asking for, but I would think that if you have a "geometric interpretation" of the marginal distribution then you're done. 
Mar 22 
comment 
inflow/outflow Boundary Conditions for flow in pipe
for a meaningful response form this site, you'll want to formulate your issue as a mathematical problem, rather than "if I do this my program crashes" 
Mar 16 
answered  the impossibility of exactly computing eigenvalues 
Mar 16 
revised 
Help with the integral $\int_{0}^{\infty}\log\left(1+\frac{s^{2}}{4\pi^{2}} \log^{2}(1+ix)\right ) e^{2\pi nx}dx$
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Mar 16 
revised 
Help with the integral $\int_{0}^{\infty}\log\left(1+\frac{s^{2}}{4\pi^{2}} \log^{2}(1+ix)\right ) e^{2\pi nx}dx$
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Mar 16 
answered  Help with the integral $\int_{0}^{\infty}\log\left(1+\frac{s^{2}}{4\pi^{2}} \log^{2}(1+ix)\right ) e^{2\pi nx}dx$ 
Mar 12 
revised 
Reference on (discrete) logconcave probability distributions
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