I am not an expert in random graph but I need the following result and I couldn't find any reference on this.

Let $G(X \cup Y,p)$ be a random bipartite graph where the set of edges is $X \cup Y$, $X$ and $Y$ both have cardinality $n$ and $p$ is the proba of adding an edge between each node in $X$ and each node in $Y$. $p \in (0,1)$ is independent of $n$. I am interested in the (expected) size of the largest biclique (not necessarily balanced!). To be more precise, a set $E_1 \cup E_2$, $E_1 \subset X$ and $E_2 \subset Y$ is a biclique if for each node $x \in X$ and each node $y \in Y$, there is an edge between $x$ and $y$. The size of a biclique $E_1 \cup E_2$ is $\mid E_1 \mid + \mid E_2 \mid$.

Let $E$ be a biclique. The conjecture is that

- for all $\alpha>0$, Pr{E has size greater than $\alpha \times n$}$\rightarrow 0$ as $n \rightarrow \infty.$

I guess there exist references on this or standard way to prove this. Could any of you help me on this?

Thanks a lot!