Exactly Hittable Interval Graphs

S. M. Dhannya, N. S. Narayanaswamy, K. K. Nisha

Given a set system $\mathcal{X}=\{\mathcal{U},\mathcal{S}\}$, where $\mathcal{U}$ is a set of elements and $\mathcal{S}$ is a set of subsets of $\mathcal{U}$, an exact hitting se…