Incomplete Gröbner basis as a preconditioner for polynomial systems
Incomplete Gröbner basis as a preconditioner for polynomial systems
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不完全格罗布纳基作为多项式系统的预处理器
DOI:
10.1016/j.cam.2008.05.054
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发表时间:
2009-04
影响因子:
2.4
通讯作者:
白峰杉
中科院分区:
文献类型:
--
作者:
陶豫徽;孙扬;白峰杉
Precondition plays a critical role in the numerical methods for large and sparse linear systems. It is also true for nonlinear algebraic systems. In this paper incomplete Gröbner basis (IGB) is proposed as a preconditioner of homotopy methods for polynomial systems of equations, which transforms a deficient system into a system with the same finite solutions, but smaller degree. The reduced system can thus be solved faster. Numerical results show the efficiency of the preconditioner.
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1989-11
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