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math.QA2018
Generalized (co)integrals on coideal subalgebras
Paweł Kasprzak
Given a a Hopf algebra , its left coideal subalgebra and a non-zero multiplicative functional on , we define the space of left -integrals . We obse…
math.QA2018
Integrals in left coideal subalgebras and group-like projections
Alexandru Chirvasitu, Pawel Kasprzak, Piotr Szulim
We develop a theory of right group-like projections in Hopf algebras linking them with the theory of left coideal subalgebras with two sided counital integrals. Every right group-l…