1998/07/11 by Jack Morava
Mathematics · #math.QA #math.AG #msc:14H10 #msc:55N35 #msc:81R10
published as Contemp. Math. 220 (1998) 255-266 · 16 pages; http://hopf.math.purdue.edu/
arxiv created 1998/07/11 · arxiv updated 2009/11/30
The Virasoro operations in Witten's theory of two-dimensional topological gravity have a homotopy-theoretic interpretation as endomorphisms of an ordinary cohomology theory with coefficients in a localization of I. Schur's ring Δof Q-functions. The resulting theory has many of the features of a vertex operator algebra.