We present a polynomial-time reduction from max-average constraints to the feasibility problem for semidefinite programs. This shows that Condon’s simple stochastic games, stochastic mean payoff games, and in particular mean payoff games and parity games can all be reduced to semidefinite programming.
@InProceedings{bodirsky_et_al:LIPIcs.ICALP.2025.145, author = {Bodirsky, Manuel and Loho, Georg and Skomra, Mateusz}, title = {{Reducing Stochastic Games to Semidefinite Programming}}, booktitle = {52nd International Colloquium on Automata, Languages, and Programming (ICALP 2025)}, pages = {145:1--145:15}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-372-0}, ISSN = {1868-8969}, year = {2025}, volume = {334}, editor = {Censor-Hillel, Keren and Grandoni, Fabrizio and Ouaknine, Jo\"{e}l and Puppis, Gabriele}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICALP.2025.145}, URN = {urn:nbn:de:0030-drops-235224}, doi = {10.4230/LIPIcs.ICALP.2025.145}, annote = {Keywords: Mean-payoff games, stochastic games, semidefinite programming, max-average constraints, max-atom problem} }
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