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Summer Graduate School

Representation stability June 24, 2019 - July 05, 2019
Parent Program: --
Location: MSRI: Simons Auditorium, Atrium
Organizers Thomas Church (Stanford University), LEAD Andrew Snowden (University of Michigan), Jenny Wilson (University of Michigan)
An illustration of an adaptation of Quillen's classical homological stability spectral sequence argument

This summer school will give an introduction to representation stability, the study of algebraic structural properties and stability phenomena exhibited by sequences of representations of finite or classical groups -- including sequences arising in connection to hyperplane arrangements, configuration spaces, mapping class groups, arithmetic groups, classical representation theory, Deligne categories, and twisted commutative algebras.  Representation stability incorporates tools from commutative algebra, category theory, representation theory, algebraic combinatorics, algebraic geometry, and algebraic topology. This workshop will assume minimal prerequisites, and students in varied disciplines are encouraged to apply. 

Suggested prerequisites:
Representations of finite groups over C and the classification of Sn-irreps
Representation Theory of Finite Groups:
- Fulton--Harris, "Representation Theory, A first course", Chapters 1-3
- Serre, "Linear representations of finite groups", Parts I and II
Representations of S_n:
- Fulton--Harris, "Representation Theory, A first course", Chapter 4
- James, "The representation theory of symmetric groups"

Commutative algebra (Noetherian rings, tensor product, free resolutions)
Tensor products:
- Dummit--Foote, "Abstract Algebra", Chapter 10.4
- Atiyah--MacDonald, "Introduction to Commutative Algebra", Chapter 2
Noetherian rings:
- Dummit--Foote, "Abstract Algebra", Chapter 15.1
- Atiyah--MacDonald, "Introduction to Commutative Algebra", Chapter 6-7

Gröbner bases
- Dummit--Foote, "Abstract Algebra", Chapter 9.5-9.6
- Cox--Little--O'Shea, "Ideals, Varieties, and Algorithms", Chapters 2.1-2.6
- Eisenbud, "Commutative algebra" Chapter 15

Representation theory of GLnC
- Henderson, "Representations of Lie Algebras", whole book
- Fulton--Harris, "Representation Theory, A first course", Chapter 15

Homological algebra (Tor, Ext, derived functors)
- Dummit--Foote, "Abstract Algebra", Chapter 10.5, 17.1
- Rotman, "An Introduction to Homological Algebra", Chapter 6.1-6.2 & 7.1-7.2
- Weibel, "An introduction to homological algebra", Chapters 2, 3

Topology (homology and cohomology of spaces and/or groups)
- Hatcher,  "Algebraic Topology", Chapters 2-3
- Brown, "Cohomology of Groups", Chapters I-III
- Dummit--Foote, "Abstract Algebra", Chapter 17.2
- Weibel, "An introduction to homological algebra", Chapters 6, 7

Symmetric functions
- MacDonald, "Symmetric Functions and Hall Polynomials", Chapter I
- Stanley, "Enumerative Combinatorics, Vol 2", Chapter 7

Category theory
- Mac Lane, "Categories for the Working Mathematician", Chapter
I.1-I.5, II.1-II.4, & IV.1-IV.4.

Backgroud articles:
- Church--Ellenberg--Farb, "FI-modules and stability for
representations of symmetric groups"
- Sam--Snowden, "Introduction to twisted commutative algebras"
- Draisma, "Noetherian up to symmetry"


For eligibility and how to apply, see the Summer Graduate Schools homepage

Keywords and Mathematics Subject Classification (MSC)
  • Representation stability

  • Representation theory

  • homological stability

  • functor categories

  • Gröbner methods

  • Noetherian

  • group cohomology

  • Schur-Weyl duality

  • twisted commutative algebra

  • FI-module

  • VI-module

  • VIC-module

  • pure braid groups

  • hyperplane arrangements

  • mapping class groups

  • Moduli space

  • Torelli groups

  • configuration spaces

  • congruence subgroups

  • Deligne categories

Primary Mathematics Subject Classification
Secondary Mathematics Subject Classification
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