- #1
AiRAVATA
- 173
- 0
Hello all, the problem I have is the following:
Suppose [itex]f \in C^1(0,1)[/itex] and [itex]f(0) = 0[/itex], then
[tex]
f^2(x) \le \int_0^1 f^2(x) dx,
[/tex]
but I was wondering if 1 is the best constant for the inequality. In other words, how do I determine the best bound for
[tex]
f^2(x) \le K \int_0^1 f^2(x) dx,
[/tex]
for K positive?
Suppose [itex]f \in C^1(0,1)[/itex] and [itex]f(0) = 0[/itex], then
[tex]
f^2(x) \le \int_0^1 f^2(x) dx,
[/tex]
but I was wondering if 1 is the best constant for the inequality. In other words, how do I determine the best bound for
[tex]
f^2(x) \le K \int_0^1 f^2(x) dx,
[/tex]
for K positive?