The stack of stable log maps and its product structure
-- Qile Chen, September 23, 2011            

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The theory of stable log maps was developed recently by
Abramovich-Chen-Gross-Siebert to generalize the notion of
relative stable maps.  I will introduce the construction of the
stack of stable log maps relative to a Cartier divisor.  By
using the product structure, we will generalize the result to
the case of target varieties with log structure of
Deligne-Faltings type.