Algebraization theorems for coherent sheaves on stacks

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Abstract/Contents

Abstract
Given a moduli problem, two important questions one can ask are the following: Is there an algebraic stack representing the moduli problem? If so, does it have a coarse space? A necessary step to answering these questions in the post-GIT era is to prove an algebraization result akin to formal GAGA for proper schemes. In this dissertation, we will present two such results. The first result (Chapter 2) is Grothendieck's existence theorem for relatively perfect complexes on an algebraic stack. This generalizes work of Lieblich in the setting of algebraic spaces. The second result (Chapter 3) is coherent completeness of BG (with G a split reductive group) and [\SL_d \backslash \mathbf{A}^d]. The results of this chapter are joint work with Jack Hall and are an important step to extending the \'{e}tale slice theorem of Alper-Hall-Rydh to positive characteristic. Finally, in future work with Jack Hall and Jarod Alper, we prove that an arbitrary [G \backslash \spec A] with G reductive is coherently complete

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2020; ©2020
Publication date 2020; 2020
Issuance monographic
Language English

Creators/Contributors

Author Lim, David Benjamin Weixuan
Degree supervisor Alper, Jarod
Degree supervisor Vakil, Ravi
Thesis advisor Alper, Jarod
Thesis advisor Vakil, Ravi
Thesis advisor Taylor, Richard
Degree committee member Taylor, Richard
Associated with Stanford University, Department of Mathematics

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility David Benjamin Weixuan Lim
Note Submitted to the Department of Mathematics
Thesis Thesis Ph.D. Stanford University 2020
Location electronic resource

Access conditions

Copyright
© 2020 by David Benjamin Weixuan Lim
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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