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math.AC2002
Arithmetic Macaulayfication of projective schemes
S. D. Cutkosky, Huy Tai Ha
In this paper, we study arithmetic Macaulayfication of projective schemes and Rees algebras of ideals. We give a necessary and sufficient condition for a nonsingular projective sch…
math.AC2001
On the Rees algebra of certain codimension two perfect ideals
Ha Huy Tai
Let X be a set of smooth points in P^2, and I = \oplus_{t >= d} I_t the defining ideal of X. In this paper, we give a set of defining equations for the Rees algebra R(I_{d+1}) of t…