2,856 reputation
1619
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location Spain , Basque Country , Bilbao
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visits member for 3 years, 2 months
seen Nov 26 at 13:24

i got a degree on Physics and have several ideas on my own , unfortunately i do not have a physics sponsor :) in order to get an investigation grant :)


Nov
26
awarded  Good Question
Nov
20
accepted evaluation of this logarithmic integrals
Nov
20
asked evaluation of this logarithmic integrals
Nov
17
accepted a doubt with the series $ \sum_{n=0}^{\infty}e^{-nx} $
Nov
15
accepted mixed limit of ·$ x^{-y} $ whenever x tends to $ \infty $ and $y \to 0^{+} $
Nov
15
asked mixed limit of ·$ x^{-y} $ whenever x tends to $ \infty $ and $y \to 0^{+} $
Nov
14
comment The limit of $ m\int_{a}^{1/m} \frac{dx}{x}=0 $ and $ m\int_{a}^{\infty} \frac{dx}{x^{1+m}}=0$ as $m\to0$
so the limit itself does not exist ?
Nov
14
comment The limit of $ m\int_{a}^{1/m} \frac{dx}{x}=0 $ and $ m\int_{a}^{\infty} \frac{dx}{x^{1+m}}=0$ as $m\to0$
$ m \to 0 4 sorry i forgot
Nov
14
asked The limit of $ m\int_{a}^{1/m} \frac{dx}{x}=0 $ and $ m\int_{a}^{\infty} \frac{dx}{x^{1+m}}=0$ as $m\to0$
Nov
14
comment Inhomogeneus recurrence relation $a_{n+1} = 2a_n+3^n+4^n$
fro 4 n \to \infty $ your difference equation becomes $ y'(x)=y(x)+3^{x}+4^{x} $ solve this and you will have an approximate solution
Nov
14
asked limit of $ x^{y} $ in several variables
Nov
12
reviewed Approve Find a map $g: \mathbb{R}^2 \rightarrow \mathbb{R}$ to prove surjectivity for a given $f:\mathbb{R} \rightarrow \mathbb{R}^2 $
Nov
12
reviewed Approve Partial derivative at (0,0).
Nov
12
asked Why the poisson summation formula works
Nov
10
asked GRAM series and Logarithmic integral
Nov
9
awarded  Popular Question
Nov
7
reviewed Approve Translating a Word Problem into an Algebraic Equation
Nov
7
reviewed Approve Simple formula for a sieries like 1, 2, 5, 10, 20, 50, 100, …
Nov
7
reviewed Approve Is irrational times rational always irrational?
Nov
7
reviewed Approve Transforming hyperbolic PDE into normal form