TY - GEN
T1 - Real root isolation of multi-exponential polynomials with application
AU - Xu, Ming
AU - Chen, Liangyu
AU - Zeng, Zhenbing
AU - Li, Zhi Bin
PY - 2010
Y1 - 2010
N2 - Real root isolation problem is to compute a list of disjoint intervals, each containing a distinct real root and together containing all. Traditional methods and tools often attack the root isolation for ordinary polynomials. However many other complex systems in engineering are modeling with non-ordinary polynomials. In this paper, we extend the pseudo-derivative sequences and Budan-Fourier theorem for multi-exponential polynomials to estimate the bounds and counts of all real roots. Furthermore we present an efficient algorithm for isolating all real roots under given minimum root separation. As a proof of serviceability, the reachability of linear systems with real eigenvalues only is approximately computable by this algorithm.
AB - Real root isolation problem is to compute a list of disjoint intervals, each containing a distinct real root and together containing all. Traditional methods and tools often attack the root isolation for ordinary polynomials. However many other complex systems in engineering are modeling with non-ordinary polynomials. In this paper, we extend the pseudo-derivative sequences and Budan-Fourier theorem for multi-exponential polynomials to estimate the bounds and counts of all real roots. Furthermore we present an efficient algorithm for isolating all real roots under given minimum root separation. As a proof of serviceability, the reachability of linear systems with real eigenvalues only is approximately computable by this algorithm.
UR - https://www.scopus.com/pages/publications/77949590410
U2 - 10.1007/978-3-642-11440-3_24
DO - 10.1007/978-3-642-11440-3_24
M3 - 会议稿件
AN - SCOPUS:77949590410
SN - 3642114393
SN - 9783642114397
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 263
EP - 268
BT - WALCOM
T2 - 4th International Workshop on Algorithms and Computation, WALCOM 2010
Y2 - 10 February 2010 through 12 February 2010
ER -