

Slides and Lecture Notes



Slides from selected research lectures
 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
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Last updated 09 Apr 2014