An introduction to algebraic deformation theory

Derived Algebraic Geometry Iv: Deformation Theory Introduction

Introduction to Deformation Theory

We give an introduction to deformation theory with a special focus on the moduli space of semistable sheaves and the Quot-scheme. These are notes to a talk given during Spring 2016 at the graduate seminar on moduli of sheaves on K3 surfaces joint between MIT and NEU.

Introduction to Algebraic Coding Theory

4 Ideals and cyclic codes 18 4.1 Ideals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.2 Cyclic codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.3 Group of a code . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.4 Minimal polynomials . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.5 BCH and Reed-Solomon codes . . . . . . . . . . ....

Introduction to Algebraic Coding Theory

∗The first versions of this book were written in Fall 2001 and June 2002 at Cornell University, respectively supported by an NSF VIGRE Grant and a Department of Mathematics Grant. The current version was written in 2005 at Franklin W. Olin College of Engineering supported by NSF CCLI DUE-0410517 Grant. Edits were made in 2006 under the same grant. If you wish to use this book, please simply let...

Introduction to Algebraic Number Theory

6 CONTENTS Preface This book is based on notes I created for a one-semester undergraduate course on Algebraic Number Theory, which I taught at Harvard during Spring 2004 and Spring 2005. The textbook for the first course was chapter 1 of Swinnerton-Dyer's book [SD01]. The first draft of this book followed [SD01] closely, but the current version but adding substantial text and examples to make t...