Talks

John Baez

These are transparencies and/or videos for some talks I've given. They're in reverse chronological order.

For a complete list of the talks I've given or am scheduled to give, click here.

• The Foundations of Applied Mathematics

  Category-Theoretic Foundations of Mathematics Workshop, U. C. Irvine, May 5, 2013.

• Milankovitch Cycles and the Earth's Climate

  Climate Science Seminar, California State University, Northridge, April 26, 2013.

• Energy and the Environment - What Physicists Can Do

  Perimeter Institute, colloquium, April 17, 2013.

• The Mathematics of Planet Earth

  SAMS 2012,
  Stellenbosch University, October 30, 2012, organized by the South African Mathematical Society and the African Institute of Mathematics.

• Diversity, Entropy and Thermodynamics

  Exploratory Conference on the Mathematics of Biodiversity,
  Centre de Recerca Matemàtica, Barcelona, July 5, 2012, organized by Tom Leinster and Richard Reeve.

• Energy, the Environment and What We Can Do

  Google, February 13, 2012, with help from Trevor Blackwell and Anybots.

• Probabilities Versus Amplitudes

  CQT Annual Symposium 2011, December 7, 2011.

• Operads and the Tree of Life

  Combinatorics Seminar, Université du Québec à Montréal, July 8, 2011.

• Energy, the Environment and What Mathematicians Can Do

  Mathematics Department Colloquium, Hong Kong University, March 23, 2011, organized by Jiang-hua Lu.

• Higher Gauge Theory, Division Algebras and Superstrings

  Workshop on Geometry and Lie Groups,
  Hong Kong University, March 25, 2011, organized by Ngaiming Mok, Jiang-hua Lu and Siye Wu.

  Quantum Theory and Gravitation,
  ETH Zürich, June 16, 2011, organized by Matthias Gaberdiel and Jürg Fröhlich.

• Algorithmic Thermodynamics

  Centre for Quantum Technologies, January 6, 2011, organized by Vlatko Vedral.

• Duality in Logic and Physics

  Quantum Physics and Logic 7,
  Oxford University, May 29, 2010, organized by Bob Coecke, Prakash Panangaden, and Peter Selinger.

• Who Discovered the Icosahedron?

  Special Session on History and Philosophy of Mathematics,
  2009 Fall Western Section Meeting of the AMS, UC Riverside, November 7, 2009, organized by Jim Tattersall and Shawnee McMurran.

• Computation and the Periodic Table

  Logic In Computer Science (LICS 2009),
  UCLA, August 11-14, 2009, program chair Andrew Pitts.

• Categorification and Topology

  Workshop on Categorification and Geometrisation from Representation Theory,
  University of Glasgow, April 13-19, 2009, organized by Iain Gordon, Nicolai Reshetikhin, Raphaël Rouquier and Catharina Stroppel.

• Lectures on Higher Gauge Theory

  Workshop on Higher Structures in Topology and Geometry II,
  Courant Research Center Göttingen, February 5-6, 2009, organized by Chenchang Zhu and Giorgio Trentinaglia.

• Groupoidification

  2009 Joint Mathematics Meetings, special session on Categorification and Link Homology,
  Washington D.C., January 7, 2009, organized by Aaron Lauda and Mikhail Khovanov.

• My Favorite Numbers

  The Rankin Lectures,
  University of Glasgow, September 15-19, 2008, supported by the Glasgow Mathematical Journal Trust.

• Computation and the Periodic Table

  Algebraic Topological Methods in Computer Science 2008
  University of Paris Diderot, July 7, 2008, organized by Eric Goubault, Emmanuel Haucourt, Michel Hirschowitz, Sanjeevi Krishnan and Martin Raussen.

• Classifying Spaces for Topological 2-Groups

  Workshop on Categorical Groups,
  Institut de Matemàtica de la Universitat de Barcelona, June 16, 2008, organized by Pilar Carrasco, Josep Elgueta, Joachim Kock and Antonio Rodríguez Garzón.

• Spans in Quantum Theory

  Deep Beauty: Mathematical Innovation and the Search for an Underlying Intelligibility of the Quantum World,
  Princeton, October 3, 2007, organized by Hans Halvorson.

• Higher Gauge Theory and the String Group

  Workshop on Poisson Geometry and Sigma Models,
  Erwin Schrödinger Institute, August 22, 2007, organized by Anton Alekseev, Henrique Bursztyn and Thomas Strobl.

• Higher Gauge Theory and Elliptic Cohomology

  2007 Abel Symposium,
  Oslo, August 8, 2007, organized by Eric Friedlander, Stefan Schwede and Graeme Segal,
  with local organizers Nils Baas, Bjørn Dundas, Bjørn Jahren and John Rognes.

• Cartan Geometry and MacDowell–Mansouri Gravity: the Work of Derek Wise

  Talk at the AstroParticule et Cosmologie group,
  Université Paris 7, July 10, 2007.

• Quantum Quandaries: a Category-Theoretic Perspective

  Philosophical and Formal Foundations of Modern Physics,
  Les Treilles, April 24, 2007.

• The Homotopy Hypothesis

  Higher Categories and Their Applications,
  Fields Institute, January 10, 2007.

• Higher Gauge Theory

  Joint mathematics/physics talk at Louisiana State University, November 16, 2006 and
  mathematics colloquium at Stanford University, December 7, 2006.

• Tales of the Dodecahedron: From Pythagoras through Plato to Poincaré

  The Reese Prosser Memorial Lecture,
  Mathematics Department, Dartmouth College, November 10, 2006.

• Zooming Out in Time

  Seminars About Long-Term Thinking,
  Long Now Foundation, San Francisco, October 13, 2006.

• Higher-Dimensional Algebra: A Language for Quantum Spacetime

  Colloquium at the Perimeter Institute, May 31, 2006.

• Higher Gauge Theory

  2006 Barrett Lectures - Current Developments in Geometric Topology,
  University of Tennessee, Knoxville, April 29 - May 1, 2006.

• Higher Categories, Higher Gauge Theory

  Unni Namboodiri Lectures, University of Chicago, April 7-11, 2006.

• Fundamental Physics: Where We Stand Today

  Faculté des Sciences, Luminy, Marseille, Feburary 27, 2006.

• Universal Algebra and Diagrammatic Reasoning

  Geometry of Computation 2006,
  January 30-February 3, 2006, Centre International de Recontres Mathématiques (CIRM), Luminy, Marseille, organized by Thomas Ehrhard and Laurent Regnier.

• Higher Gauge Theory: 2-Connections

  the Union College Mathematics Conference,
  December 3-4, 2005, organized by Brenda Johnson, Kathryn Lesh, Susan Niefield, Pedro Teixera and David Vella.

• Towards a Spin Foam Model of Quantum Gravity

  Loops '05,
  conference at the Albert-Einstein-Institut, Potsdam, Germany, October 10-14, 2005.

• Higher Gauge Theory, Homotopy Theory and n-Categories

  Topics in Homotopy Theory,
  graduate summer school at the Pacific Institute for the Mathematical Sciences, University of Calgary, August 22-26, 2005, organized by Kristine Bauer and Laura Scull.

• Higher Gauge Theory

  and

• The Mysteries of Counting: Euler Characteristic Versus Homotopy Cardinality

  Categories in Algebra, Geometry and Mathematical Physics,
  conference in honor of Ross Street's 60th birthday, Macquarie University, Sydney, July 11-16, 2005.

• From Loop Groups to 2-Groups

  U. C. Irvine Algebra Seminar, May 3, 2005.

• Loop Quantum Gravity

  ACM-SIAM Symposium on Discrete Algorithms,
  (SODA), Vancouver, British Columbia, January 24, 2005.

• Categorified Gauge Theory

  Arithmetic, Geometry and Topology,
  conference on the occasion of Larry Breen's 60th birthday, Institut Galilée, Université Paris 13, France, December 15, 2004, organized by A. Abbes, S. Lichtenbaum, L. Schwartz and J. Tilouine.

• The Problem of Dynamics in Quantum Gravity

  Workshop on Quantum Gravity in the Americas: Status and Future Directions,
  Perimeter Institute, Waterloo, Canada, October 29, 2004, organized by Etera Livine, Florian Girelli and Thomas Thiemann.

• Loop Quantum Gravity, Quantum Geometry and Spin Foams

  17th International Conference on General Relativity and Gravitation,
  (GR17), Dublin, Ireland, July 20, 2004.

• Why n-Categories?
  

  and

• What n-Categories Should Be Like
  

  and

• Space and State, Spacetime and Process

  n-Categories: Foundations and Applications,
  Institute for Mathematics and its Applications, Minneapolis, Minnesota, June 7 and June 16, 2004, organized by Peter May and John Baez.

• Spin Foam Models

  Non Perturbative Quantum Gravity: Loops and Spin Foams,
  Centre Internationale de Recontres Mathématiques, Luminy, Marseille, France, organized by Laurent Freidel, Phillipe Roche and Carlo Rovelli, May 4, 2004.

• Euler Characteristic versus Homotopy Cardinality

  Fields Institute Program on Applied Homotopy Theory,
  Department of Mathematics, University of Western Ontario, organized by Dan Christensen and Rick Jardine, September 20, 2003.

• Quantum Geometry and its Applications

  Gravitation: a Decennial Perspective,
  Center for Gravitational Physics and Geometry, Pennsylvania State University, June 9, 2003.

• Building Spacetime from Spin

  Dirac Centenary Conference,
  Baylor University, Waco, Texas, October 1, 2002.

• Categorified Gauge Theory

  2002 Joint Spring Meeting of the Pacific Northwest Geometry Seminar and Cascade Topology Seminar,
  University of Washington, Seattle, Washington, May 12, 2002.

• n-Categories in Homology Theory

  Workshop on Algebraic Stacks, Intersection Theory, and Non-Abelian Hodge Theory,
  Mathematical Sciences Research Institute, Berkeley, California, April 5, 2002.

• Riemannian Quantum Geometry and Gauge Theory

  4 lectures at Graphs and Patterns in Mathematics and Theoretical Physics,
  conference in honor of Dennis Sullivan's 60th birthday, Department of Mathematics and Institute of Mathematical Statistics, Stony Brook, New York, June 14-21, 2001.

• New Developments in Canonical Quantum Gravity

  9th Canadian Conference on General Relativity and Relativistic Astrophysics,
  University of Alberta, Edmonton, Canada, May 24, 2001.

• Spin Networks, Spin Foams and Quantum Gravity

  Minnowbrook Symposium on Space-Time Structure,
  organized by Kamesh Wali, May 29, 1999.

• Quantum Geometry and Black Hole Entropy

  Program on Classical and Quantum Physics of Strong Gravitational Fields,
  program at the Institute of Theoretical Physics, University of California at Santa Barbara, organized by Abhay Ashtekar, Gary Horowitz and James Isenberg, April 27, 1999.

© 2012 John Baez
baez@math.removethis.ucr.andthis.edu

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