@InProceedings{daviaud_et_al:LIPIcs.MFCS.2023.40, author = {Daviaud, Laure and Ryzhikov, Andrew}, title = {{Universality and Forall-Exactness of Cost Register Automata with Few Registers}}, booktitle = {48th International Symposium on Mathematical Foundations of Computer Science (MFCS 2023)}, pages = {40:1--40:15}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-292-1}, ISSN = {1868-8969}, year = {2023}, volume = {272}, editor = {Leroux, J\'{e}r\^{o}me and Lombardy, Sylvain and Peleg, David}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.MFCS.2023.40}, URN = {urn:nbn:de:0030-drops-185744}, doi = {10.4230/LIPIcs.MFCS.2023.40}, annote = {Keywords: cost register automata, universality, forall-exact problem, decidability} }