[1]DAVIS P J. Circulant Matrices[M]. New York:Chelsea,1994.
[2]GRUNSPAN C. Quantum torsors[J]. Journal of pure and applied algebra,2003,184:229-255.
[3]BICHON J,IGLESIAS A G. Hopf-Galois structures on ambiskew polynomial rings[J]. Journal of noncommutative geometry,2021,15:1 409-1431.
[4]乔宁,房莹,张良云. Sweedler四维Hopf代数上的Poisson代数结构[J]. 山东大学学报(理学版),2020,55(12):56-62,68.
[5]DRINFEL'D V G. Quantum groups[J]. Journal of soviet mathematics,1988,41:898-915.
[6]ZHENG H H,ZHANG L Y. Hopf-Galois algebras and their Poisson structures[J]. Communications in algebra,2022,50(7):3046-3063.
[7]RADFORD D E. Hopf algebras[M]. Singapore:World Scientific,2012.
[8]CHEN Y Y,WANG Z W,ZHANG L Y. FS-coalgebras and crossed coproducts[J]. Georgian mathematical journal,2019,26(3):381-392.