Feng-Wen An

most citedAutomorphism Groups of Quasi-galois Closed Arithmetic Schemes

13 citations · 16 across the 3 of their papers we have counts for

collaborators

3 papers

math.AG2009

A short note on quasi-galois closed and pseudo-galois covers

Feng-Wen An

There is a big difference between "quasi-galois" in the eprint (arXiv:0907.0842) and "pseudo-galois" in the sense of Suslin-Voevodsky.

math.AG2009★ 13 cited

Automorphism Groups of Quasi-galois Closed Arithmetic Schemes

Feng-Wen An

Assume that $X$ and $Y$ are arithmetic schemes, i.e., integral schemes of finite types over $S p ec (Z)$ . Then $X$ is said to be quasi-galois closed over $Y$ if $X$ has a uni…

math.AG2008★ 3 cited

The Combinatorial Norm of a Morphism of Schemes

Feng-Wen An

In this paper we will prove that there exists a covariant functor from the category of schemes to the category of graphs. This functor provides a combination between algebraic vari…