Maslov asymptotic theory and symplectic algorithm

CSpace

	Maslov asymptotic theory and symplectic algorithm
	Qin, MZ; Chen, JB
	2000-07-01
发表期刊	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN	0001-5733
卷号	43 期号:4 页码:522-533
摘要	In order to overcome the caustic problem in seismic tomography, we systematically study the Maslov asymptotic theory and symplectic algorithm. A numerical method for evaluating Maslov wave field, which is based on symplectic algorithm, is presented. In addition, we perform numerical simulation of ray tracing using symplectic and nonsymplectic algorithm. The result shows that the precision of both is almost the same, however, the symplectic algorithm is faster. Furthermore, in keeping Hamitonlian quantities for a long time, the symplectic algorithm has an incomparable superiority over nonsymplectic algorithm.
关键词	Maslov theory asymptotic caustic symplectic
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000088538700012
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/15184
专题	中国科学院数学与系统科学研究院
通讯作者	Qin, MZ
作者单位	Chinese Acad Sci, Inst Computat Math & Sci Engn Comp, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Qin, MZ,Chen, JB. Maslov asymptotic theory and symplectic algorithm[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2000,43(4):522-533.
APA	Qin, MZ,&Chen, JB.(2000).Maslov asymptotic theory and symplectic algorithm.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,43(4),522-533.
MLA	Qin, MZ,et al."Maslov asymptotic theory and symplectic algorithm".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 43.4(2000):522-533.