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# ReesStrategy -- a strategy for determining whether a map is birational and computing its inverse

## Description

ReesStrategy is a valid value for the Strategy Option for inverseOfMap, isBirationalMap, and isEmbedding. By choosing Strategy=>ReesStrategy, the ideal of definition of the Rees algebra is computed by the known elimination technique. This technique is described in Proposition 1.5 on page 21 in the book

- Vasconcelos, Wolmer. Integral closure. Springer Monographs in Mathematics. Springer-Verlag, Berlin,2005. xii+519 pp.

## See also

- SaturationStrategy -- a strategy for determining whether a map is birational and computing its inverse
- SimisStrategy -- a strategy for determining whether a map is birational and computing its inverse
- HybridStrategy -- A strategy for determining whether a map is birational and computing its inverse

## For the programmer

The object ReesStrategy is a symbol.

The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/RationalMaps.m2:1491:0.