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ID 15761
Eprint ID
15761
FullText URL
Author
Morikawa, Yoshitaka
Hamada, Hiroshi
Abstract
Two variational formulations for electromagnetic field and charged-particle stream configurations, in which both field and particles are described by the field-like variables suited for the problems of electrodynamics, are presented. One of them is directly obtained through slight modifications of Sturrock's original procedure but has a complicated form. The other is obtained through linearization of the preceding one and has a compact form. Both formulations lend themselves to straightforward derivation of the well-known energy-momentum tensor and/or its conservation law. Specifically the latter one is of academic interest because of its compact form. Moreover, as a proof of its practical usefulness the variational principle under the small-amplitude approximation is derived from it, which is known to provide a basis for the study of certain types of instability in plasmas. It is, however, hoped that it will find main applications in the electrodynamics problems concerned with large-amplitude behavior.
Published Date
1980-11-29
Publication Title
Memoirs of the School of Engineering, Okayama University
Publication Title Alternative
岡山大学工学部紀要
Volume
volume15
Issue
issue1
Publisher
岡山大学工学部
Publisher Alternative
School of Engineering, Okayama University
Start Page
79
End Page
100
ISSN
0475-0071
NCID
AA00733903
Content Type
Departmental Bulletin Paper
language
英語
File Version
publisher
Refereed
False
Eprints Journal Name
mfe