Madsen-Weiss for geometrically minded topologists

نویسندگان

  • Yakov Eliashberg
  • Søren Galatius
چکیده

We give an alternative proof of Madsen-Weiss’ generalized Mumford conjecture. Our proof is based on ideas similar to Madsen-Weiss’ original proof, but it is more geometrical and less homotopy theoretical in nature. At the heart of the argument is a geometric version of Harer stability, which we formulate as a theorem about folded maps.

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تاریخ انتشار 2009