Twistings, crossed coproducts, and Hopf-Galois coextensions
2003 ◽
Vol 2003
(69)
◽
pp. 4325-4345
◽
LetHbe a Hopf algebra. Ju and Cai (2000) introduced the notion of twisting of anH-module coalgebra. In this paper, we study the relationship between twistings, crossed coproducts, and Hopf-Galois coextensions. In particular, we show that a twisting of anH-Galois coextension remainsH-Galois if the twisting is invertible.
2000 ◽
Vol 24
(1)
◽
pp. 105-113
◽
2017 ◽
Vol 16
(04)
◽
pp. 1750061
◽
2018 ◽
Vol 17
(07)
◽
pp. 1850132
2011 ◽
Vol 10
(02)
◽
pp. 241-255
◽
1967 ◽
Vol 31
◽
pp. 239-251
◽
Keyword(s):
Keyword(s):
1970 ◽
Vol 28
◽
pp. 260-261
Keyword(s):