A corollary of the b-function lemma

Details A corollary of the b-function lemma A corollary of the b-function lemma

2008-10-08

arxiv.org/abs/0810.1504v2

Mathematics

Algebraic Geometry

Scientific paper

Let $X$ be an algebraic variety, $f$ a regular function, $j:U\subset X$ the complement to the locus of vanishing of $f$, and $M$ a holonomic D-module on $U$. Consider the $D_U[s]$-module $M\otimes "f^s"$. The goal of this note is to describe all $D_X[s]$-submodules $N\subset j_*(M\otimes "f^s")$ such that $j^*(N)\simeq M\otimes "f^s"$.

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