3 papers
math.RT2005
Local theory of almost split sequences for comodules
William Chin, Mark Kleiner, Declan Quinn
We show that almost split sequences in the category of comodules over a coalgebra with finite-dimensional right-hand term are direct limits of almost split sequences over finite di…
math.QA2004
Quantized hyperalgebras of rank 1
William Chin, Leonid Krop
We study the algebra obtained via Lusztig's `integral' form [Lu 1, 2] of the generic quantum algebra for the Lie algebra modulo the two-sided ideal generated…
math.QA2004
Spectra of quantized hyperalgebras
William Chin, Leonid Krop
We describe the prime and primitive spectra for quantized enveloping algebras at roots of 1 in characteristic zero in terms of the prime spectrum of the underlying enveloping algeb…