Author

I. Ljubić

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Preprint Sep 2026

An Exact Algorithm for the Max-Min Covering Location Blocker Problem

We introduce the Max-Min Covering Location Blocker Problem, a bilevel optimization problem in which a leader blocks a minimum-cost set of candidate locations so that the optimal coverage of a budget-constrained follower does not exceed a prescribed target. Each customer's coverage is determined by the least favorable o...

Yun-Tian Zhang, Chen Chen, Fabio Furini et al. · 0 citations

#edge computing Preprint Aug 2026

An Integer Programming Approach to Compute Lower Bounds for Ramsey Numbers Using Circulant Graphs

The Ramsey number $R(m,n)$ is the smallest order at which every red-blue edge coloring of a complete graph must contain a blue clique (a complete subgraph) of size $m$ or a red clique of size $n$. Determining these numbers exactly is extremely hard, and even certifying a lower bound requires exhibiting an explicit colo...

Stefano Coniglio, Fabio Furini, I. Ljubić et al. · 0 citations