# reesclos.lib

SINGULAR Library reesclos.lib: procedures to compute the int. closure of an ideal. A library to compute the integral closure of an ideal I in a polynomial ring R=k[x(1),...,x(n)] using the Rees Algebra R[It] of I. It computes the integral closure of R[It], which is a graded subalgebra of R[t]. The degree-k-component is the integral closure of the k-th power of I. In contrast to the previous version, the library uses ’normal.lib’ to compute the integral closure of R[It]. This improves the performance considerably.

## References in zbMATH (referenced in 1 article )

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