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A Zariski theorem for monodromy of $A$-hypergeometric systems
Published 1 May 2020 in math.AG, math.AP, math.AT, and math.NT | (2005.00275v1)
Abstract: We give conditions under which the monodromy group of an $A$-hypergeometric system is invariant under modifications of the collection of characters $A$. The key ingredient is a Zariski--Lefschetz type theorem for principal $A$-determinants.
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