In this paper we associate to a linear differential equation with coefficients in the field of Laurent formal power series a new geometric object, a spectrum in the sense of Berkovich. We compute this spectrum and show that it contains interesting information about the equation.

中文翻译：

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形式幂级数域上线性微分方程的谱

在本文中，我们将一个线性微分方程与 Laurent 形式幂级数领域中的系数联系起来，一个新的几何对象，Berkovich 意义上的频谱。我们计算这个频谱并表明它包含有关方程的有趣信息。