TY - JOUR AU - Ville Piirainen PY - 2013/01/01 Y2 - 2024/03/28 TI - On shuffle ideals of general algebras JF - Acta Cybernetica JA - Acta Cybern VL - 21 IS - 2 SE - Regular articles DO - 10.14232/actacyb.21.2.2013.2 UR - https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3841 AB - We extend a word language concept called shuffle ideal to general algebras. For this purpose, we introduce the relation SH and show that there exists a natural connection between this relation and the homeomorphic embedding order on trees. We establish connections between shuffle ideals, monotonically ordered algebras and automata, and piecewise testable tree languages. ER -