Journal
SCIENCE CHINA-MATHEMATICS
Volume -, Issue -, Pages -Publisher
SCIENCE PRESS
DOI: 10.1007/s11425-022-2079-3
Keywords
quantum group; center; Whittaker module
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In this paper, we introduce and study the twisted Whittaker modules over U-q(gl(n+1)) by choosing different generators. We classify all the simple twisted Whittaker modules with nonsingular Whittaker functions, which agrees with Kostant's results for the simple complex Lie algebras sl(n+1) as q approaches 1.
As is well known, the classical nonsingular Whittaker modules over quantum groups cannot be defined for non A1-type. In this paper, by choosing different generators for the quantum group U-q(gl(n+1)), we introduce and study the twisted Whittaker modules over U-q(gl(n+1)). We classify all the simple twisted Whittaker modules with nonsingular Whittaker functions. This agrees Kostant's results on Whittaker modules for the simple complex Lie algebras sl(n+1) as q approaches 1.
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