An estimation for the first eigenvalue of the Dirac operator on closed K�hler manifolds of positive scalar curvature

1986 ◽  
Vol 4 (3) ◽  
pp. 291-325 ◽  
Author(s):  
Klaus-Dieter Kirchberg
Keyword(s):  
Dirac Operator ◽  
Scalar Curvature ◽  
Positive Scalar Curvature ◽  
First Eigenvalue ◽  
Positive Scalar ◽  
The First Eigenvalue

Positive scalar curvature metrics via end-periodic manifolds

2020 ◽  
Vol 5 (3) ◽  
pp. 639-676
Author(s):  
Michael Hallam ◽  
Varghese Mathai
Keyword(s):  
Scalar Curvature ◽  
Positive Scalar Curvature ◽  
Positive Scalar

scholarly journals Complete hypersurfaces in cylinders

1989 ◽  
Vol 46 (2) ◽  
pp. 313-318
Author(s):  
Thomas Hasanis
Keyword(s):  
Euclidean Space ◽  
Scalar Curvature ◽  
Sectional Curvature ◽  
Positive Scalar Curvature ◽  
Positive Scalar ◽  
Coordinate Functions ◽  
Bounded Below ◽  
Complete Hypersurfaces

AbstractWe consider the extent of certain complete hypersurfaces of Euclidean space. We prove that every complete hypersurface in En+1 with sectional curvature bounded below and non-positive scalar curvature has at least (n − 1) unbounded coordinate functions.

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