This report documents the program and the outcomes of Dagstuhl Seminar 21391 "Sparsity in Algorithms, Combinatorics and Logic". The seminar took place in a hybrid format from September 26 - October 1, 2021 and brought together 61 researchers. This report includes a discussion of the motivation of the seminar, presentation of the overall organization, abstracts of talks, and a report from each of the working groups.
@Article{kral'_et_al:DagRep.11.8.115, author = {Kr\'{a}l’, Daniel and Pilipczuk, Micha{\l} and Siebertz, Sebastian and Sullivan, Blair D.}, title = {{Sparsity in Algorithms, Combinatorics and Logic (Dagstuhl Seminar 21391)}}, pages = {115--128}, journal = {Dagstuhl Reports}, ISSN = {2192-5283}, year = {2022}, volume = {11}, number = {8}, editor = {Kr\'{a}l’, Daniel and Pilipczuk, Micha{\l} and Siebertz, Sebastian and Sullivan, Blair D.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/DagRep.11.8.115}, URN = {urn:nbn:de:0030-drops-157718}, doi = {10.4230/DagRep.11.8.115}, annote = {Keywords: Algorithm design, Parameterised complexity, Sparse graphs, Graph decompositions, Model theory} }
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