The signature of the Ricci curvature of left-invariant Riemannian metrics on four-dimensional lie groups. The unimodular case
A. G. Kremlev, Yu. G. NikonorovVolume:
19
Language:
english
Pages:
23
DOI:
10.3103/s1055134409040038
Date:
October, 2009
File:
PDF, 688 KB
english, 2009