Introduction to homological geometry: part II

  title={Introduction to homological geometry: part II},
  author={Martin A. Guest},
Quantum cohomology is a concrete manifestation of the deep relations between topology and integrable systems which have been suggested by quantum field theory. It is a generalization of ordinary cohomology theory, and (thanks to the pioneering work of many people) it can be defined in a purely mathematical way, but it has two striking features. First, there is as yet no general set of computational techniques analogous to the standard machinery of algebraic topology. Many calculations have been… 
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