Infinite Loop Spaces

Operads in algebraic topology (2 lectures)
Kathryn Hess - MSRI Workshop, 2014.

Infinite Loop Space Theory
Maxine Calle, 2019.

Operads, Algebras, and Modules
J. Peter May, 2001.

Γ-spaces and deloopings
Dan Freed, 2012.

Blog post on Γ-spaces
Akhil Mathew, 2012.

Categories and cohomology theories
Graeme Segal, 1972.

The Geometry of Iterated Loop Spaces
Peter May, 1972.

“What is an operad?” in AMS Notices
Jim Stasheff, 2004.

Operads in Algebra, Topology, and Physics
John Baez, 2002.

Rings, modules, and algebras in infinite loop space theory
A. D. Elmendorf, M. A. Mandell, 2004.

An Inverse K-Theory Functor
Michael Mandell, 2010.

Operads and operadic algebras in homotopy theory
Michael Mandell, 2019.