# Function for Block Sensitivity comparison with Sensitivity

I need to find function $f$ where Block Sensitivity is larger than its Sensitivity $bs(f) > s(f)$

For example sortedness function where: $0000$,$0001$,$0011$, $0111$, $1111$, $1110$, $1100$, $1000$ gives 1 and otherwise $0$. $bs(f)$ would be $3$ and $s(f)$ would be $2$.

I am looking for more such simple examples, possibly where bs difference is even larger.

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Could you give (or link to) definitions of "block sensitivity" and "sensitivity"? –  Henning Makholm Apr 16 '12 at 15:05
And what does this have to do with complex analysis? –  Henning Makholm Apr 16 '12 at 15:06
technologyreview.com/blog/post.aspx?bid=349&bpid=25470 this is quite nice article –  rskuja Apr 16 '12 at 21:43