Resonance Equals Reducibility for A-hypergeometric Systems
نویسنده
چکیده
Classical theorems of Gel’fand et al. and recent results of Beukers show that nonconfluent Cohen–Macaulay A-hypergeometric systems have reducible monodromy representation if and only if the continuous parameter is A-resonant. We remove both the confluence and Cohen–Macaulayness conditions while simplifying the proof.
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تاریخ انتشار 2010