Extending the notion of Strebel differentials to the Deligne–Mumford compactification of moduli spaces
نویسنده
چکیده
We define Strebel differentials for stable complex curves, prove the existence and uniqueness theorem that generalizes Strebel’s theorem for smooth curves, and show how this construction can be applied to clarify a delicate point in Kontsevich’s proof of Witten’s conjecture.
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