Presenting degenerate Ringel-Hall algebras of cyclic quivers |
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Authors: | Bangming Deng Jie Du Alexandre Mah |
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Institution: | a School of Mathematical Sciences, Beijing Normal University, Beijing 100875, China b School of Mathematics and Statistics, University of New South Wales, Sydney, NSW 2052, Australia |
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Abstract: | Using the generators labelled by simple and sincere semisimple modules for the Ringel-Hall algebra Hq(n) of a cyclic quiver Δ(n), we give a presentation for the degenerate algebra H0(n). This is achieved by establishing a presentation for the generic extension monoid algebra of Δ(n). As an application, we show that both the degenerate Ringel-Hall algebra and the degenerate quantum affine sln admit multiplicative bases. |
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Keywords: | 17B37 16G20 |
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