A Numerical Algorithm for Zero Counting. III: Randomization and Condition
A Numerical Algorithm for Zero Counting. III: Randomization and Condition
复制标题
一种零计数的数值算法。
DOI:
10.1016/j.aam.2011.07.001
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
M. Wschebor
中科院分区:
文献类型:
--
作者:
F. Cucker;T. Krick;G. Malajovich;M. Wschebor
In a recent paper (Cucker et al., 2008 [8]) we analyzed a numerical algorithm for computing the number of real zeros of a polynomial system. The analysis relied on a condition number κ(f) for the input system f. In this paper we look at κ(f) as a random variable derived from imposing a probability measure on the space of polynomial systems and give bounds for both the tail P{κ(f)>a} and the expected value E(logκ(f)).
DOI:
10.1090/s0025-5718-08-02060-7
发表时间:
2008
期刊:
Math. Comput.
影响因子:
--
作者:
P. Bürgisser;F. Cucker;M. Lotz
通讯作者:
M. Lotz