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Upper Bounds for Mutations of Potentials

Keywords: cluster algebras , Laurent phenomenon , mutation of potentials , mirror symmetry

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In this note we provide a new, algebraic proof of the excessive Laurent phenomenon for mutations of potentials (in the sense of [Galkin S., Usnich A., Preprint IPMU 10-0100, 2010]) by introducing to this theory the analogue of the upper bounds from [Berenstein A., Fomin S., Zelevinsky A., Duke Math. J. 126 (2005), 1-52].


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