The Fundamental Theorem of prehomogeneous vector spaces modulo $p^m$. With an appendix "L-functions of prehomogeneous vector spaces" by Fumihiro Sato
英文摘要：
For a number field $K$ with ring of integers ${\mathcal O}_K$, we prove an analogue over finite rings of the form ${\mathcal O}_K/{\mathcal P}^m$ of the Fundamental Theorem on the Fourier transform of a relative invariant of prehomogeneous vector spaces, where ${\mathcal P}$ is a big enough prime ideal of ${\mathcal O}_K$ and $m>1$. In the appendix, F. Sato gives an application of the Theorems A, B and the Theorems A, B, C in J. Denef and A. Gyoja [\emph{Character sums associated to prehomogeneous vector spaces}, Compos. Math., \textbf{113} (1998) 237--346] to the functional equation of $L$-functions of Dirichlet type associated with prehomogeneous vector spaces.
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