EURO 2025 Leeds
Abstract Submission

1786. On the NP-hardness of the degree-constrained network design problem

Invited abstract in session WB-20: Complexity and Approximation, stream Combinatorial Optimization.

Wednesday, 10:30-12:00
Room: Esther Simpson 2.11

Authors (first author is the speaker)

1. Brieuc Pierre
CORE, UCLouvain-LIDAM
2. Francesco Pisanu
LIPN, Université Sorbonne Paris Nord
3. Daniele Catanzaro
Center for Operations Research and Econometrics, Université Catholique de Louvain

Abstract

Given a connected weighted graph G=(V,E), the k-Network Design Problem (k-NDP) consists of deciding whether there exists a spanning tree in G, whose internal vertices have degree k and such that the shortest path between each pair of leaves is smaller than or equal to a given constant. This problem finds applications both in epidemiology and in the modeling of the evolutionary relationships among species. Here we show that the k-NDP is NP-complete for every every natural k greater or equal to 3.

Keywords

Status: accepted


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