Graph Burning models a contagion spreading in a network as a process such that in each step one node is infected and also the infection spreads to all neighbors of previously infected nodes. Formally, the burning number b(G) of a given graph G = (V,E), possibly with edge lengths, is the minimum number g such that there exists a sequence of nodes v₁,…,v_g satisfying the property that for each w ∈ V there exists i ∈ {1,…,g} so that the distance between w and v_i is at most g-i. We present an elegant deterministic 2.314-approximation algorithm for the Graph Burning problem on general graphs with arbitrary edge lengths. This algorithm matches the approximation ratio of the previous randomized 2.314-approximation algorithm and improves on the previous deterministic 3-approximation algorithm.
@InProceedings{lieskovsky:LIPIcs.ESA.2025.108, author = {Lieskovsk\'{y}, Matej}, title = {{Deterministic Approximation Algorithm for Graph Burning}}, booktitle = {33rd Annual European Symposium on Algorithms (ESA 2025)}, pages = {108:1--108:7}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-395-9}, ISSN = {1868-8969}, year = {2025}, volume = {351}, editor = {Benoit, Anne and Kaplan, Haim and Wild, Sebastian and Herman, Grzegorz}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ESA.2025.108}, URN = {urn:nbn:de:0030-drops-245775}, doi = {10.4230/LIPIcs.ESA.2025.108}, annote = {Keywords: Graph Algorithms, Approximation Algorithms, Graph Burning} }
Feedback for Dagstuhl Publishing