在本文中,我們定義了有關 section的 空間,其中 section會構成一族群 , 是跟 Monge-Amp?re方程式有關,以及我們也證明了 的對偶空間是 空間。 In this atricle, we define the space $VMO_{\mathcal{F}}(\mathbb R^{n})$ associated with a family $\mathcal{F}$ of sections, where $\mathcal{F}$ is closely related to the Monge-Amp\`{e}re equation, and we prove that the dual space of $VMO_{\mathcal{F}}(\mathbb R^{n})$ is just the Hardy space $H^{1}_{\mathcal{F}}(\mathbb R^{n})$, where is defined in [5].