Abstract
Cylindrical Algebraic Decomposition (CAD) was the first practical means for doing Real Quantifier Elimination (QE), and is still a major method. Nevertheless, its complexity is inherently doubly exponential in the number of variables. Where applicable, virtual term substitution (VTS) is more effective, turning a QE problem in n variables to one in n-1 variables in one application, and so on. Hence there is scope for hybrid methods: doing VTS where possible then using CAD. This paper describes such a poly-algorithmic implementation, based on the second author's Ph.D. thesis. The version of CAD used is based on a new implementation of Lazard's method, with improvements to handle equational constraints, similar to the equational constraint handling in previous CAD algorithms.
Original language | English |
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Title of host publication | Proceedings - 2023 25th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing, SYNASC 2023 |
Editors | Sorin Stratulat, Mircea Marin, Viorel Negru, Daniela Zaharie |
Place of Publication | U. S. A. |
Publisher | IEEE |
Pages | 44-51 |
Number of pages | 8 |
ISBN (Electronic) | 9798350394122 |
ISBN (Print) | 9798350394139 |
DOIs | |
Publication status | Published - 10 May 2024 |
Event | 25th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing, SYNASC 2023 - Nancy, France Duration: 11 Sept 2023 → 14 Sept 2023 |
Publication series
Name | Proceedings - 2023 25th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing, SYNASC 2023 |
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Conference
Conference | 25th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing, SYNASC 2023 |
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Country/Territory | France |
City | Nancy |
Period | 11/09/23 → 14/09/23 |
Keywords
- Cylindrical Algebraic Decomposition
- Quantifier Elimination
- Virtual Term Substitution
ASJC Scopus subject areas
- Computational Theory and Mathematics
- Computer Science Applications
- Software
- Numerical Analysis
- Computational Mathematics
- Health Informatics
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Dataset for Quantifier Elimination and CAD examples in Maple
Tonks, Z. (Creator) & Davenport, J. (Supervisor), University of Bath, 1 Jul 2023
DOI: 10.15125/BATH-00746
Dataset