Affine PBW bases and affine MV polytopes
Affine PBW bases and affine MV polytopes
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DOI:
10.1007/s00029-018-0436-9
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发表时间:
2016-09
期刊:
影响因子:
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通讯作者:
D. Muthiah;P. Tingley
中科院分区:
文献类型:
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作者:
D. Muthiah;P. Tingley
We show how affine PBW bases can be used to construct affine MV polytopes, and that the resulting objects agree with the affine MV polytopes recently constructed using either preprojective algebras or KLR algebras. To do this we first generalize work of Beck–Chari–Pressley and Beck–Nakajima to define affine PBW bases for arbitrary convex orders on positive roots. Our results describe how affine PBW bases for different convex orders are related, answering a question posed by Beck and Nakajima.