24,554 reputation
25296
bio website ilorentz.org/beenakker
location Leiden, The Netherlands
age
visits member for 4 years, 6 months
seen 1 hour ago
physicist at Leiden University

1d
revised Are symplectic methods used in (classical) Economics?
added 186 characters in body
1d
answered Are symplectic methods used in (classical) Economics?
1d
revised Helly's theorem in other areas of mathematics
added 160 characters in body
1d
revised Helly's theorem in other areas of mathematics
added 218 characters in body
1d
revised Helly's theorem in other areas of mathematics
added 200 characters in body
1d
answered Helly's theorem in other areas of mathematics
May
26
revised Limiting absorption principle
deleted 119 characters in body
May
26
answered Limiting absorption principle
May
26
comment Cartopolar curve
math.stackexchange.com/questions/1299183/carto-polar-curve
May
24
comment Algorithm to generate a (pseudo-) random high-dimensional function
indeed it does...
May
24
revised Algorithm to generate a (pseudo-) random high-dimensional function
added 112 characters in body
May
24
answered Algorithm to generate a (pseudo-) random high-dimensional function
May
23
comment Any reference in absorbing boundary conditions for non-abelian gauge fields?
iopscience.iop.org/1367-2630/10/4/045022/pdf/njp8_4_045022.pdf
May
21
comment Find the expansion of the exact solution (beyond Taylor)
it's really simple: give the whole expression to Mathematica, substitute $\beta=\beta'\epsilon$, $\alpha=\alpha'/\epsilon$, and ask Mathematica to expand in powers of $\epsilon$ to second order; and you'll get the desired result. You expand to second order because there are no terms of lower order.
May
21
comment Find the expansion of the exact solution (beyond Taylor)
@BrendanMcKay --- expanding around the minimum makes sense, but will not give the formula desired by the OP; for that the limit $\mu\rightarrow 0$, $S\rightarrow\infty$ at fixed $\mu^3 S^2$ is needed.
May
21
revised Find the expansion of the exact solution (beyond Taylor)
added 164 characters in body
May
20
revised Find the expansion of the exact solution (beyond Taylor)
deleted 1 character in body
May
20
answered Find the expansion of the exact solution (beyond Taylor)
May
20
awarded  Revival
May
20
comment Find the expansion of the exact solution (beyond Taylor)
indeed, this is a mistake, S goes to infinity, not to zero, otherwise you cannot have $S\mu$ of order unity and $S\mu^2$ small (in other words, $\mu$ is of order $1/S$).