Covariant and dynamical reduction for principal bundle field theories

被引:7
作者
Castrillon Lopez, Marco [1 ]
Marsden, Jerrold E. [2 ]
机构
[1] Univ Complutense Madrid, Dept Geometria & Topol, E-28040 Madrid, Spain
[2] CALTECH, Pasadena, CA 91125 USA
基金
美国国家科学基金会;
关键词
variational calculus; symmetries; reduction; Euler-Poincare equations;
D O I
10.1007/s10455-008-9108-x
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Reduction for field theories with symmetry can be done either covariantly-that is, on spacetime-or dynamically-that is, after spacetime is split into space and time. The purpose of this article is to show that these two reduction procedures are, in an appropriate sense, equivalent for a class of field theories whose fields take values in a principal bundle. One can think of this class of field theories as including examples such as a "sea of rigid bodies" with and appropriate interbody coupling potential.
引用
收藏
页码:263 / 285
页数:23
相关论文
共 14 条
[11]   Reduction in principal bundles:: Covariant Lagrange-Poincare equations [J].
López, MC ;
Ratiu, TS .
COMMUNICATIONS IN MATHEMATICAL PHYSICS, 2003, 236 (02) :223-250
[12]  
López MC, 2001, LETT MATH PHYS, V58, P167
[13]   The geometry of the bundle of connections [J].
López, MC ;
Masqué, JM .
MATHEMATISCHE ZEITSCHRIFT, 2001, 236 (04) :797-811
[14]  
Marsden J. E., 1999, Introduction to Mechanics and Symmetry-A Basic Exposition of Classical Mechanical Systems, V2nd ed., DOI 10.1007/978-0-387-21792-5