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Newton polytopes and algebraic hypergeometric series
Transactions of the American Mathematical Society ( IF 1.3 ) Pub Date : 2020-10-05 , DOI: 10.1090/tran/8184
Alan Adolphson , Steven Sperber

Let $X$ be the family of hypersurfaces in the odd-dimensional torus ${\mathbb T}^{2n+1}$ defined by a Laurent polynomial $f$ with fixed exponents and variable coefficients. We show that if $n\Delta$, the dilation of the Newton polytope $\Delta$ of $f$ by the factor $n$, contains no interior lattice points, then the Picard-Fuchs equation of $W_{2n}H^{2n}_{\rm DR}(X)$ has a full set of algebraic solutions (where $W_\bullet$ denotes the weight filtration on de Rham cohomology). We also describe a procedure for finding solutions of these Picard-Fuchs equations.

中文翻译:

牛顿多面体和代数超几何级数

令 $X$ 是奇维环面 ${\mathbb T}^{2n+1}$ 中的超曲面族,由具有固定指数和可变系数的 Laurent 多项式 $f$ 定义。我们证明如果 $n\Delta$,$f$ 的牛顿多胞体 $\Delta$ 的膨胀因子 $n$,不包含内部格点,那么 $W_{2n}H 的 Picard-Fuchs 方程^{2n}_{\rm DR}(X)$ 有全套代数解(其中 $W_\bullet$ 表示 de Rham 上同调上的权重过滤)。我们还描述了寻找这些 Picard-Fuchs 方程解的过程。
更新日期:2020-10-05
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