${\varphi }_{\epsilon }$-coordinated modules for vertex algebras

Chengming Bai, Haisheng Li, Yufeng Pei

We study ${\varphi }_{\epsilon }$-coordinated modules for vertex algebras, where ${\varphi }_{\epsilon }$ with $\epsilon$ an integer parameter is a family of associates of the one-dimensional additive formal group. As the mai…