Title of article :
Topological Invariants and Curvature
Author/Authors :
Arab, G.H Karaj Branch - Islamic Azad University , Toomanian, M Karaj Branch - Islamic Azad University
Abstract :
Abstract. It is widely known that the fundamental group of a Lie group, and in general a symmetric space, is abelian. In the current paper it is demonstrated that any finitely generated abelian group is the fundamental group of a compact Lie group. In addition, it is proved that for any arbitrary group there is a differentiable manifold of dimension greater than 3 whose fundamental group is that arbitrary group.
Keywords :
Sectional curvature , Homotopy groups , Finitely generated abelian groups , Fundamental group , Lie groups
Journal title :
Journal of Mathematical Extension(IJME)