CSU Topology-Geometry-Algebra Seminar

Fridays in Rhodes Tower 1516 at 1:30 pm

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$$H^p(B;\{H^q(F;\mathcal R)\}) \Rightarrow H^{p+q}(E;\mathcal R)$$

$${\rm G}={\rm Ric} - \frac12\,\kappa\cdot g=8\pi T$$

$$H^*(\mathcal Z_K;\mathbb k) \cong {\rm Tor}^S(S/I;\mathbb k)$$

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List of Speakers for SPRING Semester 2012

• 1/27 John Oprea, Introduction to Riemannian and Combinatorial Ricci Curvature.
• 2/3 John Oprea, Combinatorial Ricci Curvature as a Weitzenbock analogue.
• 2/10 John Walsh, Combinatorial Ricci Curvature: Myers's Theorem.
• 2/17 John Walsh, Combinatorial Ricci Curvature: Myers's Theorem II.
• 2/24 Giovanni Bazzoni, Instituto de Ciencias Matematicas CSIC-UAM-UC3M-UCM, Geometric Structures on Nilmanifolds.
• 3/2 Giovanni Bazzoni, Instituto de Ciencias Matematicas CSIC-UAM-UC3M-UCM, Rational Homotopy and Nilmanifolds.
• 3/9 Mark Grant, University of Nottingham, Topological complexity of groups and LS-category of homomorphisms.
• 3/23 Ivan Soprunov, Toric codes on complete intersections I.
• 3/30 No Seminar.
• 4/6 Ivan Soprunov, Toric codes on complete intersections II.
• 4/13 Ivan Soprunov, Toric codes on complete intersections III.
• 4/20 No Seminar, Science Research Day
• 4/27 Paul Schrader, Positive Combinatorial Ricci Curvature on the 2-Sphere.

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List of Speakers for FALL Semester 2011

• 9/9 Jonathan Scott, Hochschild Cohomology and Deligne's Conjecture I: What is the Shape of a Ring?
• 9/16 Jonathan Scott, Hochschild Cohomology and Deligne's Conjecture II: Algebraic structure in the Hochschild complex.
• 9/23 Jonathan Scott, Hochschild Cohomology and Deligne's Conjecture III.
• 9/30 Jonathan Scott, Hochschild Cohomology and Deligne's Conjecture IV.
• 10/7 Cancelled
• 10/14 Jonathan Scott, Hochschild Cohomology and Deligne's Conjecture V.
• 10/21 Jonathan Scott, Hochschild Cohomology and Deligne's Conjecture VI.
• 10/28 Greg Lupton, Topological Complexity I
• 11/4 Greg Lupton, Topological Complexity II
• 11/18 Greg Lupton, Topological Complexity III
• 12/2 Greg Urbanski, Simplicial Homology and Robotics
• 12/9 Greg Urbanski, A Homological Condition for Robot-Cockroach Stability

List of Speakers for SPRING Semester 2011

• 2/11 Peter Bubenik, Discrete Morse Theory
• 2/18 Peter Bubenik, Discrete Morse Theory II
• 2/25 Canceled due to Blizzard
• 3/4 Peter Bubenik, Discrete Gradient Vector Fields
• 3/11 Peter Bubenik, Discrete Gradient Vector Fields II
• 3/25 Canceled due to Student Conference
• 4/8 Peter Bubenik, Morse Functions from Gradient Vector Fields
• 4/29 Peter Bubenik, Evasive Subcomplexes

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List of Speakers for FALL Semester 2010

• 9/17 John Oprea, Topological Complexity and Robotics
• 9/24 John Oprea, Calculating Topological Complexity
• 10/1 John Oprea, Calculating Topological Complexity II
• 10/8 John Oprea, Intro to Linkages: Moduli Spaces; the Peaucellier Inversor.
• 11/12 John Oprea, Polygon Spaces.
• 11/19 John Oprea, An Aside on Homology.
• 12/3 John Oprea, An Aside on Morse Theory.
• 12/10 John Oprea, Morse Theory, Critical Points, Polygon Spaces and a Theorem in Linear Algebra.

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