论文标题
$ D $对称单型吗？
Is $D$ symmetric monoidal?
论文作者
论文摘要
我们验证某个函数$ d \ colon \ text {sp}^σ（\ text {ch}^+）\ to \ text {ch} $是对称的单体。该函数在开发对称光谱的模型类别理论和链条复合物的其他位置都用于划分以$ \ mathbb {n} $或$ \ mathbb {z} $。
We verify that a certain functor $D\colon\text{Sp}^Σ(\text{Ch}^+)\to\text{Ch}$ is symmetric monoidal. This functor is used elsewhere in developing the model category theory of symmetric spectra and of chain complexes graded over $\mathbb{N}$ or $\mathbb{Z}$.
