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math.AG2011★ 4 cited
Expanded degenerations and pairs
Dan Abramovich, Charles Cadman, Barbara Fantechi +1
Since Jun Li's original definition, several other definitions of expanded pairs and expanded degenerations have appeared in the literature. We explain how these definitions are rel…
math.AG2011★ 54 cited
Orbifold techniques in degeneration formulas
Dan Abramovich, Barbara Fantechi
We give an approach for relative and degenerate Gromov--Witten invariants, inspired by that of Jun Li but replacing predeformable maps by transversal maps to a twisted target. The…