Slides and Lecture Notes of Keri SatherWagstaff
Slides from selected research lectures
 Gender Equity Transitions: From Awareness to Action to ACTION
OURFA^{2}M^{2}
 The Secret Algebraic Lives of Graphs
Arizona State University, Mathematical and Statistical Sciences Colloquium
 Ascent of Test Modules
Iowa State University, Algebra and Geometry Seminar
 Semidualizing modules give a defective Gorenstein defect
AMS Special Session on Commutative Algebra:
Interactions with Algebraic Geometry and Algebraic Topology
 Associated Primes of Derived Local Cohomology
AMS Special Session on Homological Methods in Commutative Algebra,
North Carolina State University at Raleigh, November 1213, 2016
 Adic Semidualizing Modules
AMS Special Session on Commutative Algebra,
University of Georgia, March 56, 2016
 Creating a More Inclusive and Diverse Environment in Academia
SACNAS Session on Creating a More Inclusive and Diverse Environment in Academia, Washington, DC, Oct 2015
 Adic Semidualizing Modules
AMS Special Session on Homological Methods in Commutative Algebra, California State University, Fullerton, Oct 2015
 Gorenstein Injective Filtrations over CohenMacaulay Rings with Dualizing Modules
AMS Special Session on Recent Advances in Commutative Algebra, University of memphis, Oct 2015
 Path Ideals for Weighted Graphs
AMS Special Session on Commutative Algebra and Its Interactions with Algebraic Geometry, Dalhousie University, Oct 2014
 Derived category techniques in commutative algebra
AMS Special Session Directions in Commutative Algebra: Past, Present, Future (dedicated to the memory of H.B. Foxby), University of WisconsinEau Claire, Sep 2014
 Two questions about Ext
AMS Special Session on Commutative Ring Theory, University of WisconsinEau Claire, Sep 2014
 On the structure of S_2ifications of complete local rings
AMS Special Session on Interactions between Commutative Algebra and Algebraic Geometry, Texas Tech University, Apr 2014
 Local rings of embedding codepth at most 3 have only trivial semidualizing complexes
AMS Special Session on Commutative Algebra, University of New Mexico, Apr 2014
 Path Ideals for Weighted Graphs
AMS Special Session on Special Session on Commutative Algebra and its Interaction with Algebraic Geometry and Combinatorics, University of California, Riverside, Nov 2013
 Reflexivity and Connectedness
AMS Special Session on Commutative Rings, Ideals, and Modules, University of Louisville, Oct 2013
 Ascent Properties for Derived Functors
AMS Special Session on Commutative Ring Theory, Iowa State University, Apr 2013
 Weakly Spherical Modules
AMS Special Session on Topics in Commutative Algebra, University of Arizona, Oct 2012
 A local ring has only finitely many semidualizing modules up to isomorphism
AMS Special Session on Singularities in Commutative Algebra and Algebraic Geometry,
University of Kansas, Mar 2012
 A theorem in representation theory for DG algebras, with an application to a question of Vasconcelos
AMS Special Session on Algebraic Geometry and Graded Commutative Algebra, University of NebraskaLincoln, Oct 2011
 Ext^1: What is it good for?
NDSU Mathematics Colloquium, Sep 2011
 Generalized ZeroDivisor Graphs
Miniconference on Commutative Ring Theory,
University of Iowa, Mar 2011
 Bass Numbers and Semidualizing Modules
AMS Special Session on Commutative Algebra,
University of Iowa, Mar 2011
 Finite generation of Ext and ascent of module structures
AMS Special Session on Commutative Algebra and Its Interactions with Algebraic Geometry,
University of Notre Dame, Nov 2010
 The Mathematics of Internet Security:
Keeping Eve The Eavesdropper Away From Your Credit Card Information
NDSU College of Science and Mathematics Science Cafe, Sep 2010.
 Semidualizing modules for rings of codimension 2
AMS Special Session on Commutative Algebra: Module and Ideal Theory,
Baylor University, Oct 2009
 Semidualizing modules and bass numbers
AMS Special Session on Local and Homological Methods in Commutative Algebra,
University of Illinois at UrbanaChampaign, Mar. 2009
 Semidualizing modules and bass numbers
4th World Conference on 21st Century Mathematics
Abdus Salam School of Mathematical Sciences
Lahore, Pakistan, Mar. 2009
 Doing algebra in Tehran
World iView Speakers Series,
North Dakota State University, Jan. 2009
 Gorenstein presentations and semidualizing
modules
AMS Special Session on Hilbert Functions and Free Resolutions,
University of British Columbia, Oct. 2008
 Homotopytheory techniques in commutative algebra
Mathematics Department Colloquium,
Texas Tech University, Apr. 2007
 Complete Intersection Dimensions and Foxby Classes
AMS Special Session on Free Resolutions,
DePaul University, Oct. 2007
 Extvanishing and Ascent of Module Structures
workshop on Commutative Algebra and its Interaction with Algebraic Geometry,
Banff International Research Station, June 2007
 Homological Algebra of Local Ring Homomorphisms
Mathematical Sciences Department Colloquium,
Kent State University, Feb. 2007
 Homotopytheory techniques in commutative algebra
Mathematics Department Colloquium,
University of Copenhagen, Jan. 2007
 Detecting completeness from Extvanishing
AMS Special Session on Commutative Algebra,
University of Utah, Sep. 2006
 Descent of semidualizing complexes
Homological Conjectures in Commutative Algebra;
A Conference in Honor of Paul C. Roberts Sixtieth Birthday,
Snowbird, UT, May 2006
 Incomparability of semidualizing modules
AMS Special Session on Homological Aspects of Commutative Algebra,
Bard College, Oct. 2005
 Descent of semidualizing modules
Nebraska Commutative Algebra Conference: WiegandFest,
University of NebraskaLincoln, May 2005
 Semidualizing modules
AMS Special Session on Local and Homological Algebra,
Vanderbilt University, Oct. 2004
 A new characterization of Gorenstein rings
AMS Special Session on the Homological Algebra of Commutative Rings,
Houston, TX, May 2004
 The set of semidualizing complexes is a metric space
AMS Special Session on Syzygies and Hilbert Functions,
Florida State University, Mar. 2004
 Gorenstein Dimension of the Frobenius Endomorphism
AMSIMSSIAM Summer Research conference,
Commutative Algebra: Presentations by Young Researchers,
Snowbird, UT, July 2003
 Complete Intersection Dimension for Complexes
AMS Special Session on Commutative Algebra and Algebraic Geometry,
San Diego, CA, Jan. 2002
 Symbolic Powers of Prime Ideals
AMS Special Session on Commutative Algebra,
Williams College, Oct. 2001
 Intersections of Symbolic Powers of Prime Ideals
Algebra Weekend 2001,
University of Missouri, Columbia, Apr. 2001
 A Conjecture of Kurano and Roberts Related to the Positivity of the
Intersection Multiplicity of Serre
AMS Special Session on Algebraic Geometry and Commutative Algebra,
Washington, DC, Jan. 2000
 Multiplicities and Localization
AMS Special Session on Commutative Algebra,
University of Utah, Sep. 1999
 Polynomials and Affine Space, an Introduction to Commutative Algebra and
Algebraic Geometry
Mathematics Department Colloquium,
San Francisco State University, Oct. 1999
Lecture notes
 Notes for my 2021 Course on Combinatorial Free Resolutions, typed by
Nathan Fontes
and
McKay Visser (last updated 26 Nov 2021)
 Notes for my Foundations of Module Theory short course,
Online CIMPA PreSchool El Salvador 2020
 Notes for my 2019 Course on Free Resolutions, typed by
Nathan Fontes
and
Todd Morra (last updated 14 Jan 2020)
 Notes for my 2017 Course on Homological Algebra, typed by
Todd Morra

A somewhat gentle introduction to differential graded commutative algebra,
with Kristen A. Beck,
Connections between Algebra, Combinatorics, and Geometry,
Springer Proceedings in Mathematics and Statistics 76
(2014), 399.
 Notes for my 2008/2010 Course on Monomial Ideals;
revision history.
 Notes for my 2009 course on semidualizing modules.
revision history.
 Notes for my 20072008
Homological Algebra Seminar.
(last updated 08 Sep 2009;
revision history).
 Notes for my 20072008
Graduate Algebra Course.
(last updated 29 Apr 2008)
 Notes for lectures on
"Koszul
cohomology and Cohen structure theorems"
given at the
University of Utah
minicourse on "Classical Problems in Commutative Algebra", June 2004.
 Notes for Dick Gross' Algebraic Number Theory Course
given at the University of Utah, Spring 1999:
all lectures (118) compressed
.ps or
.pdf.
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Last updated 20 Nov 2022