diff --git a/main.pdf b/main.pdf index 9e66617..fc5c57d 100644 Binary files a/main.pdf and b/main.pdf differ diff --git a/main.tex b/main.tex index 22dc1b4..8c12f7a 100644 --- a/main.tex +++ b/main.tex @@ -140,6 +140,20 @@ s.t.& & \sum_{e\in T} x_e&\geq 1 & &\forall T\quad \text{($x$ forms Now this LP looks similar to the normalized min-cut problem. +A further reformulation (the new $x$ is $x-y$) gives us the following, + +\begin{equation*} +\begin{aligned} +\min& & \sum_{e} x_e w(e) & & \\ +s.t.& & \sum_{e\in T} x_e+y_e&\geq 1 & &\forall T\quad \text{($x$ forms a cut)}\\ +& & \sum_{e} y_e c(e) &\leq B & &\text{(budget for $F$)}\\ +% & & x_e&\geq y_e & &\forall e\quad(F\subset C)\\ +& & y_e,x_e&\in\{0,1\} & &\forall e +\end{aligned} +\end{equation*} + +Note that now this is almost a positive covering LP. + \section{Random Stuff} \subsection{remove box constraints}