Open AccessProjective modules for the subalgebra of degree 0 in a finite-dimensional hyperalgebra of type 𝐴₁
Author(s) -
Yutaka Yoshii
Publication year - 2018
Publication title -
proceedings of the american mathematical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.968
H-Index - 84
eISSN - 1088-6826
pISSN - 0002-9939
DOI - 10.1090/proc/13934
Subject(s) - algorithm , computer science , annotation , artificial intelligence
We describe the structure of projective indecomposable modules for the subalgebra consisting of the elements of degree 0 in the hyperalgebra of the r r -th Frobenius kernel for the algebraic group SL 2 ( k ) \textrm {SL}_2(k) , using the primitive idempotents which were constructed before by the author.