Open AccessTime-integral theorems for Birkhoff systems
Author(s) -
Ge Wei-Kuan,
Mei Feng-Xiang
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.2479
Subject(s) - mathematics , identity (music) , integral equation , variational principle , mathematical analysis , calculus (dental) , pure mathematics , physics , medicine , dentistry , acoustics
The purpose of this paper is to study the time-integral theorems for the Birkhoff systems. A time-integral identity of the systems is presented. The power-like equation, the Pfaff-Birkhoff integral variational principle and the Pfaff-Birkhoff-d′Alembert differential variational principle of the systems are deduced by using the time-integral identity.