Cornell University
Library
Cornell UniversityLibrary

eCommons

Help
Log In(current)
  1. Home
  2. Cornell University Graduate School
  3. Cornell Theses and Dissertations
  4. An Inverse Galois Deformation Problem

An Inverse Galois Deformation Problem

File(s)
Chen_cornellgrad_0058F_11098.pdf (441.76 KB)
Permanent Link(s)
https://doi.org/10.7298/X43776Z9
https://hdl.handle.net/1813/59641
Collections
Cornell Theses and Dissertations
Author
Chen, Taoran
Abstract

Suppose $\bar{\rho}: \Gal({\bar{F}/F}) \rightarrow \GL_2(\mathbf{k})$ is a residual Galois representation satisfying several mild conditions, where $F$ is a number field and $\mathbf{k}$ is a finite field with characteristics $p \geq 7$. In this work, we show that for any finite flat reduced complete intersection over $W(\mathbf{k})$, $\mathcal{R}$, we can construct a deformation problem defined by local conditions imposed on some finite set of places in $F$, such that the corresponding universal deformation ring of $\bar{\rho}$ is $\mathcal{R}$. It's a theorem of Wiles that if the local conditions are chosen to express restriction to deformations coming from modular forms, then the corresponding universal deformation ring is a finite flat reduced complete intersection, so our work can be regarded as a converse to Wiles' result.

Date Issued
2018-08-30
Keywords
Galois representation
•
number theory
•
universal deformation ring
•
Mathematics
•
deformation theory
Committee Chair
Ramakrishna, Ravi Kumar
Committee Member
Zywina, David J.
Templier, Nicolas P.
Degree Discipline
Mathematics
Degree Name
Ph. D., Mathematics
Degree Level
Doctor of Philosophy
Type
dissertation or thesis

Site Statistics | Help

About eCommons | Policies | Terms of use | Contact Us

copyright © 2002-2026 Cornell University Library | Privacy | Web Accessibility Assistance