Recent content by PeteSampras

Do you say something like that ##\int_0^{2\pi}d\theta\int_0^\pi d\phi \int_0^\infty dp~p^2e^{-lp}e^{ipr\cos (\theta)}## I also have intented without results

I need compute the integral $$(2\pi)^{-3} \int d^3p e^{-l|p|}e^{i \vec{x} \cdot \vec{p}}$$ The problem does not specified the limits of integration The result is $$\frac{1}{\pi^2} \frac{l}{\sqrt{\vec{x}^2+l^2}}$$I saw the references about t-Student and I had not achieved it. I have tried to...

I don't understand :( This mean that, in my problem ##(1-x)^{1/n}## is not possible to approximate the function for ##x_0 \approx 1##?

Thanks. This is my doubt. As for example, if is there any approximation of ##x^{1/3}## near x=0, where Taylor is not possible because the function is not differentiable

Thanks. I don't understand your idea, because ##f'(x_0)## does not exist for x_0=1

Obviously, a priori it is not possible tu use the Taylor series because the derivative ##\sim (x-1)^{1/n-1}## is not well defined in x=1. Is there any mathematical trick? or, other approximation?

Than you to all by their comments , but 1) "Shoud i justify this fact in my CV? " I refer to write in my CV a) Education PhD (2017-2020). MsC (2010-2012). Enginer (1999-2004) Plus Comments (as justification) - Between 2005-2009 i worked as enginer- Between 2013-2016 i worked as Lecturer of...

I 'am 40 years old. I 'am from Sudamerica. - Between my 19 and 25 years , i studied Industrial Enginer. - Between 26 and 29 years old i worked as Industrial Enginer. - Between 30 and 32 years old i studied a Master in Physics (branewold models). (1 publication) -Between 33 and 36 years old i...

my paper was in "awaiting referee report" during 1 month. After this, the asociate editor says "We have now received both primary referee reports. However, as they do not agree we have to send your manuscript and the referee reports to an adjudicator. " The page of the journal says : "If the...

I submitt a paper to journal Classical and Quantum Gravity. The status "awaiting referee reports" lasted one mont. However, now , the paper is on status "awaiting decision" two weaks up to now. Is a ill signal the delayed on the status "awaiting decision"?

I am reading the paper https://arxiv.org/pdf/0801.4591.pdf , says "Fortunately, the fact that the heat capacity of the cosmological horizon be positive permits to foresee the evolution of the space in absence of any external source. Taking the correct signs for the temperatures one can notice...

I don't understand your assumption. ##r=r_+## and ##r=r_{++}## are two differents points such that ##r_{++}>r_+##

Homework Statement Question: If ##r_+ \neq r_{++}## and ## g(r=r_+) \neq g(r=r_{++}) ## When is it fulfilled that ## d g (r=r_+) \neq d g (r=r_+) ## ? Homework Equations ##r_+ \neq r_{++}## ## g(r=r_+) \neq g(r=r_{++}) ## The Attempt at a Solution I tried computing ## dg(r_+) =...

Dear, I have submitted a paper currently to one journal of physics. The first revision had 5 point. In the second revision four of them was answered satisfactory, but the point 5 was comented and add other two new coments. After this, the revision changed of editor. What could be the reason of...

obviously before... But my fears is that the editor stop the revision of my submission whereas it is determined the supposed plagiarism