Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
For geometric ramification theory, one should refer to Takeshi Saito's papers. Here I am just list one:
The characteristic cycle and the singular support of a constructible sheaf, Inventiones mathematicae, 207(2) (2017), 597-695.
