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math.AC2014
A theorem about Cremona maps and symbolic Rees algebras
Barbara Costa, Zaqueu Ramos, Aron Simis
This work is about the structure of the symbolic Rees algebra of the base ideal of a Cremona map. We give sufficient conditions under which this algebra has the "expected form" in…
math.AC2014
On catalecticant perfect ideals of codimension 2
A. Simis, Z. Ramos
One deals with catalectic codimension two perfect ideals and certain degenerations thereof, with a view towards the nature of their symbolic powers. In the spirit of [10] one consi…