%0 Conference Proceedings %T Square on Deterministic, Alternating, and Boolean Finite Automata %+ Slovak Academy of Sciences (SAS) %A Krajňáková, Ivana %A Jirásková, Galina %Z Part 2: Contributed Papers %< avec comité de lecture %( Lecture Notes in Computer Science %B 19th International Conference on Descriptional Complexity of Formal Systems (DCFS) %C Milano, Italy %Y Giovanni Pighizzini %Y Cezar Câmpeanu %I Springer International Publishing %3 Descriptional Complexity of Formal Systems %V LNCS-10316 %P 214-225 %8 2017-07-03 %D 2017 %R 10.1007/978-3-319-60252-3_17 %Z Computer Science [cs]Conference papers %X We investigate the state complexity of the square operation on languages represented by deterministic, alternating, and Boolean automata. For each k such that $1 \le k \le n-2$, we describe a binary language accepted by an n-state DFA with k final states meeting the upper bound $n2^n - k2^{n-1}$ on the state complexity of its square. We show that in the case of $k=n-1$, the corresponding upper bound cannot be met. Using the DFA witness for square with $2^n$ states where half of them are final, we get the tight upper bounds on the complexity of the square operation on alternating and Boolean automata. %G English %Z TC 1 %Z WG 1.2 %2 https://inria.hal.science/hal-01657005/document %2 https://inria.hal.science/hal-01657005/file/440206_1_En_17_Chapter.pdf %L hal-01657005 %U https://inria.hal.science/hal-01657005 %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-TC1 %~ IFIP-WG %~ IFIP-DCFS %~ IFIP-WG1-2 %~ IFIP-LNCS-10316