443 reputation
38
bio website
location
age
visits member for 2 years, 5 months
seen Nov 5 '13 at 17:17

Jun
3
comment The solutions are bounded on $[0,+\infty)$
@Giuseppe.... lol.. I have to remember just trigonometric identities it seems... :) to expiate it i will write down a thousand times $$\sin(t-\xi)=\sin(t)\cos(\xi)-\cos(t)\sin(\xi).$$ Grazie btw
Jun
1
accepted Stability of the origin as parameter varies
Jun
1
asked The solutions are bounded on $[0,+\infty)$
May
5
accepted Prove that the space is not complete
May
5
asked Prove that the space is not complete
May
2
awarded  Editor
May
2
revised Stability of the origin as parameter varies
added 339 characters in body
May
1
comment Stability of the origin as parameter varies
I know how to linearize the system around the origin, an then how to solve point a). Point b) however is escaping my mind. In particular, even if it is quite embarassing to say, i don't understand what globally means in tht context. So, yes, point b) is my main issue to deal with.
May
1
asked Stability of the origin as parameter varies
Apr
30
accepted Prove that there are no analytic function satisfying this property
Apr
30
asked Prove that there are no analytic function satisfying this property
Apr
29
accepted Monotone sequence bounded in $L^2([0,1])$ strongly converges
Apr
29
asked Monotone sequence bounded in $L^2([0,1])$ strongly converges
Mar
19
accepted Prove the existence of a sequence of Points $t_n\to +\infty$ such that $f'(t_n)\to 0$.
Mar
19
asked Prove the existence of a sequence of Points $t_n\to +\infty$ such that $f'(t_n)\to 0$.
Mar
6
awarded  Supporter
Mar
6
accepted Differential equation: $x''(t)+a(t)f(x(t))=0$
Mar
6
asked Differential equation: $x''(t)+a(t)f(x(t))=0$
Mar
2
awarded  Scholar
Mar
2
accepted Calculate $\lim_{t\to\infty}\frac 1t\log\int_0^1 \cosh(tf(x))\mathrm d x$