Upper cluster algebras and choice of ground ring
Upper cluster algebras and choice of ground ring
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DOI:
10.1007/s11425-018-9486-6
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发表时间:
2018-02
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影响因子:
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通讯作者:
Eric Bucher;John M. Machacek;M. Shapiro
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文献类型:
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作者:
Eric Bucher;John M. Machacek;M. Shapiro
We initiate a study of the dependence of the choice of ground ring on the problem on whether a cluster algebra is equal to its upper cluster algebra. A condition for when there is equality of the cluster algebra and upper cluster algebra is given by using a variation of Muller’s theory of cluster localization. An explicit example exhibiting dependence on the ground ring is provided. We also present a maximal green sequence for this example.