Degenerations and multiplicity-free formulas for products of ψ and ω classes on M¯0,n

In this paper, we consider products of ψ and ω classes on M ¯ 0 , n + 3 . For each product, we construct a flat family of subschemes of M ¯ 0 , n + 3 whose general fiber is a complete intersection representing the product, and whose special fiber is a generically reduced union of boundary strata. Ou...

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Veröffentlicht in:	Mathematische Zeitschrift 2023, Vol.304 (4)
Hauptverfasser:	Gillespie, Maria, Griffin, Sean T., Levinson, Jake
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Combinatorial analysis Hyperplanes Mathematics Mathematics and Statistics Permutations
Online-Zugang:	Volltext
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