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机译:Left counital Hopf algebras on free Nijenhuis algebras
Lanzhou Univ, Sch Math & Stat, Key Lab Appl Math & Complex Syst, Lanzhou, Gansu, Peoples R China;
Ningxia Univ, Sch Math & Stat, Yinchuan 750021, Ningxia, Peoples R China;
Bracketed words; factorization; left counital bialgebra; left counital Hopf algebra; Nijenhuis algebra;