DG algebras with exterior homology
  We study differential graded algebras whose homology is an exterior algebra over a commutative ring R on a generator of degree n, and also certain types of differential modules over these DGAs. We obtain a complete classification when R is the integers, or the prime field of characteristic p>0, and n is greater than or equal to -1. The examples are unexpectedly interesting. 
W. G. Dwyer, J. P. C. Greenlees, and S. B. Iyengar
math.AT math.RA