1.
Proc Natl Acad Sci U S A
; 76(3): 1024-5, 1979 Mar.
Article
in English
| MEDLINE
| ID: mdl-16592627
ABSTRACT
We find some integrability conditions for low-dimensional manifolds to admit metrics with nonnegative scalar curvature. In particular, we solve the positive action conjecture in general relativity in the affirmative.
