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Quantifier Elimination by Cylindrical Algebraic Decomposition — Twenty Years of Progress

  • George E. Collins
Part of the Texts and Monographs in Symbolic Computation book series (TEXTSMONOGR)

Abstract

The CAD (cylindrical algebraic decomposition) method and its application to QE (quantifier elimination) for ERA (elementary real algebra) was announced by the author in 1973 at Carnegie Mellon University (Collins 1973b). In the twenty years since then several very important improvements have been made to the method which, together with a very large increase in available computational power, have made it possible to solve in seconds or minutes some interesting problems. In the following we survey these improvements and present some of these problems with their solutions.

Keywords

Algebraic Number Interval Arithmetic Irreducible Factor Quantifier Elimination Projection Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag/Wien 1998

Authors and Affiliations

  • George E. Collins

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