THE WESS-ZUMINO TERM ON MANIFOLDS WITH GROUP-ACTIONS

被引：0

作者：

PAPADOPOULOS, G

机构：

[1] Dept. of Math., King's Coll., London

来源：

CLASSICAL AND QUANTUM GRAVITY | 1990年 / 7卷 / 02期

关键词：

D O I：

10.1088/0264-9381/7/2/004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Wess-Zumino term H is studied on the sigma model manifold M with a group action fg, g is an element of the group G. fg is a symmetry of the Wess-Zumino term provided that f*gH=H and C(g, ( phi ))=1. C(g, ( phi )) is a group homomorphism from G to U(1) and ( phi ) is the homotopy class of the sigma model map phi . If phi is contractible to a constant map, it is shown that C(g, ( phi ))=1.

引用

页码：L41 / L42

页数：2