On vanishing theorems for local systems associated to Laurent polynomials
On vanishing theorems for local systems associated to Laurent polynomials
复制标题
关于与洛朗多项式相关的局部系统的消失定理
DOI:
10.1017/nmj.2017.8
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发表时间:
2018
期刊:
影响因子:
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通讯作者:
A. Esterov and K. Takeuchi
中科院分区:
文献类型:
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作者:
Qing-Ming Cheng;G. Wei and Y. Zheng;A. Esterov and K. Takeuchi
We prove some vanishing theorems for the cohomology groups of local systems associated to Laurent polynomials. In particular, we extend one of the results of Gelfand et al. [Generalized Euler integrals and-hypergeometric functions, Adv. Math. 84 (1990), 255–271] to various directions. In the course of the proof, some properties of vanishing cycles of perverse sheaves and twisted Morse theory are used.