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math.AG2021★ 1 cited
Exponential sums and rigid cohomology
Peigen Li
In this article, we prove a comparison theorem between the Dwork cohomology introduced by Adolphson and Sperber and the rigid cohomology. As a corollary, we can calculate the rigid…
math.AG2018★ 2 cited
The -adic Gelfand-Kapranov-Zelevinsky hypergeometric complex
Lei Fu, Peigen Li, Daqing Wan +1
To a torus action on a complex vector space, Gelfand, Kapranov and Zelevinsky introduce a system of differential equations, which are now called the GKZ hypergeometric system. Its…