Exhibits a monomial ideal I in K[x,y,z,w] with reg(I)=4 but reg(overline{I})=5, providing a counterexample to the Küronya-Pintye conjecture.
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A counterexample to a conjecture of K\"uronya and Pintye on regularity and integral closure
Exhibits a monomial ideal I in K[x,y,z,w] with reg(I)=4 but reg(overline{I})=5, providing a counterexample to the Küronya-Pintye conjecture.