Taylor J. Smith, Kai Salomaa. Concatenation Operations and Restricted Variants of Two-Dimensional Automata. In Tomás Bures, Riccardo Dondi, Johann Gamper, Giovanna Guerrini, Tomasz Jurdzinski, Claus Pahl, Florian Sikora, Prudence W. H. Wong, editors, SOFSEM 2021: Theory and Practice of Computer Science - 47th International Conference on Current Trends in Theory and Practice of Computer Science, SOFSEM 2021, Bolzano-Bozen, Italy, January 25-29, 2021, Proceedings. Volume 12607 of Lecture Notes in Computer Science, pages 147-158, Springer, 2021. [doi]
Abstract is missing.