bio | website | marcofrasca.wordpress.com |
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location | ||
age | ||
visits | member for | 2 years, 4 months |
seen | Apr 7 at 5:51 | |
stats | profile views | 1,473 |
I am a theoretical physicist working in the area of quantum field theory, mostly QCD and gauge theories. I am also interested on techniques of solution of PDEs. An incomplete list of my publications can be found on arXiv. Most of these papers appeared in refereed journals.
Mar 11 |
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Green function and translational symmetry
Did you mean "there is no way to reconstruct $\phi(t)$ ..."? |
Mar 11 |
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Green function and translational symmetry
Thanks Carlo. I think that this is the main point. but can I start from $G(t,0)$ to reconstruct in some way $G(t,t')$? |
Mar 11 |
asked | Green function and translational symmetry |
Feb 17 |
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Solvable PDEs and their Green's functions
@CarloBeenakker: It could be having an analytical solution to compare with. Indeed, this seems the case. |
Feb 17 |
asked | Solvable PDEs and their Green's functions |
Dec 28 |
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Differentiable functions with discontinuous derivatives
My personal view is that the question OP put forward is in the wrong forum. So, unsatisfactory answers are obtained unless a mathematical-minded reader is concerned. I think that, for the sake of completeness, he should look in physics.stackexchange.com where a more appropriate audience can yield the answer he is looking for. |
Dec 25 |
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Differentiable functions with discontinuous derivatives
Of course, any Green function of the Schroedinger equation does. E.g., for a free particle you will get $t^{-\frac{1}{2}}e^{i\frac{x^2}{2t}}$ but there is plenty of cases. So, starting from Green functions like these you just have a choice to do in perturbation theory. I was also considering a two-level system but with a different parameter rather than time. Dependence on coupling in quantum field theory or just quantum mechanics in perturbation theory generally have the property you are looking for. |
Dec 24 |
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Differentiable functions with discontinuous derivatives
Indeed, there are a lot of examples coming from perturbation theory applied in physics. So, I have to agree with the comment by Alexandre Eremenko. |
Nov 25 |
awarded | Yearling |
Oct 19 |
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Inverse problems for an asymptotic series which depends on a parameter?
@j.c.:Indeed, that is the obvious solution: $a_n=\delta_{n,0}$ with $\nu\rightarrow 0$. |
Oct 15 |
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What's the asymptotic behavior of this function at large distance?
Thanks, just fixed. |
Oct 15 |
revised |
What's the asymptotic behavior of this function at large distance?
Fixed a formula |
Oct 15 |
answered | What's the asymptotic behavior of this function at large distance? |
Oct 7 |
revised |
What's the name of this distribution
Formatted LaTeX |
Oct 7 |
suggested | suggested edit on What's the name of this distribution |
Oct 1 |
answered | A nonlinear initial-boundary value problems with Taylor expansion of parameter |
Sep 30 |
awarded | Caucus |
Sep 24 |
revised |
Asymptotic solution of the integral equation
Rephrasing |
Sep 24 |
answered | Asymptotic solution of the integral equation |
Sep 24 |
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Asymptotic solution of the integral equation
The paper cited by OP can be freely downloaded at dept.math.lsa.umich.edu/~abloch/RollingSpheres17.pdf. |