**UBC Mathematics Department**

*http://www.math.ubc.ca*

## Colloquium Abstract: Professor Jack Morava, Department of Mathematics, John Hopkins University

*What physicists know about cohomology that we don't*

Somewhat to the consternation of the topological community,
theoretical physicists have in recent years become interested
in something they call `quantum cohomology'. To a mathematician
some aspects of this are very mysterious -- quantum cohomology
is not much of a functor, for example -- but the physicists
have their own insights into the subject, which have led to
new results about quite concrete classical problems. This talk
will be very elementary; some nice [and unfamiliar] things can
be seen relatively simply from the physicists' point of view.
I will give a kind of introductory survey, in hope of making the
subject more accessible to both communities.

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