Graded quantum cluster algebras and an application to quantum Grassmannians
Graded quantum cluster algebras and an application to quantum Grassmannians
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分级量子簇代数及其在量子格拉斯曼量中的应用
DOI:
10.1112/plms/pdu018
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发表时间:
2014
影响因子:
1.8
通讯作者:
Grabowski J
中科院分区:
文献类型:
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作者:
Grabowski J
We introduce a framework for-gradings on cluster algebras (and their quantum analogues) that are compatible with mutation. To do this, one chooses the degrees of the (quantum) cluster variables in an initial seed subject to a compatibility with the initial exchange matrix, and then one extends this to all cluster variables by mutation. The resulting grading has the property that every (quantum) cluster variable is homogeneous.In the quantum setting, we use this grading framework to give a construction that behaves somewhat like twisting, in that it produces a new quantum cluster algebra with the same cluster combinatorics but with different quasi-commutation relations between the cluster variables.We apply these results to show that the quantum Grassmanniansadmit quantum cluster algebra structures, as quantizations of the cluster algebra structures on the classical Grassmannian coordinate ring found by Scott. This is done by lifting the quantum cluster algebra structure on quantum matrices due to Geiß –Leclerc–Schröer and completes earlier work of the authors on the finite-type cases.
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DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
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DOI:
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2009
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