- #1
phonic
- 28
- 0
Dear members,
I try to find the upper bound of the following function. Can anybody gives a hint? Thanks!
[tex]
f(t,p)=\sum_p \frac{p(1-p)}{t^5}[p^4(9t^4-81t^3+225t^2-274t+120)+p^3(-12t^4+129t^3-400t^2+524t-240)+
[/tex]
[tex]
\mbox{\hspace{2cm}}p^2(4t^4-59t^3+ 216t^2-311t+150)+p(7t^3-36t^2+59t-30)+(t-1)^2]
[/tex]
where
[tex]
t=1,2,3,..
[/tex]
[tex]
\sum_p p = 1
[/tex]
The problem is to find the function g(t) that
[tex]
f(t,p) \leq g(t)
[/tex]
It seems that
[tex]
g(t)\sim 1/t
[/tex]
Is it possible to find a better bound?
I try to find the upper bound of the following function. Can anybody gives a hint? Thanks!
[tex]
f(t,p)=\sum_p \frac{p(1-p)}{t^5}[p^4(9t^4-81t^3+225t^2-274t+120)+p^3(-12t^4+129t^3-400t^2+524t-240)+
[/tex]
[tex]
\mbox{\hspace{2cm}}p^2(4t^4-59t^3+ 216t^2-311t+150)+p(7t^3-36t^2+59t-30)+(t-1)^2]
[/tex]
where
[tex]
t=1,2,3,..
[/tex]
[tex]
\sum_p p = 1
[/tex]
The problem is to find the function g(t) that
[tex]
f(t,p) \leq g(t)
[/tex]
It seems that
[tex]
g(t)\sim 1/t
[/tex]
Is it possible to find a better bound?
Last edited: