Juvitop Spring 2006

This is the Juvitop seminar webpage from Spring 2006, which was organized by Tyler Lawson about Stacks in Homotopy Theory and Topology. This site was originally hosted here. This is part of a deep copy of all prior Juvitop websites that I could find in the fall of 2016.

Return to the list of past Juvitops

Juvitop, Spring 2006

This semester, the Juvitop seminar is focusing on stacks in topology and homotopy theory.

Talks are on Wednesdays at 4:30pm in 2-143.

Lecture schedule

March 15Tyler LawsonIntroduction, orbifolds
March 22Vigleik AngeltveitSheaves, sites, and cohomology
April 5Ricardo AndradeGrothendieck topologies
April 12Rekha SanthanamDescent and Hopf algebroids
April 19Barry WalkerRepresentable morphisms and sheaves
April 26John FrancisThe Landweber exact functor theorem
May 3Josh Nichols-BarrerSurvey of various topologies
May 10Mike Hill


Orbifolds as groupoids: an introduction, by Ieke Moerdijk.

Complex oriented cohomology theories and the language of stacks. Lecture notes based on a course given by Mike Hopkins.

Notes on Grothendieck topologies, fibered categories, and descent theory, by Angelo Vistoli.

Foundations of topological stacks I, by Behrang Noohi.

Topological and smooth stacks, by David Metzler.

Stacks, by William Fulton.

Presheaves of ring spectra over the moduli stack of formal group laws, by Paul Goerss.

Stacks for everybody, by Barbara Fantechi.

Notes for Barry Walker's talk.

Juvitop Fall 2005 was on surgery theory.

Juvitop Spring 2005 was on Galois theory of structured ring spectra.

Juvitop Fall 2004 was on equivariant homotopy theory.