Lectures on Morse theory, old and new. (English) Zbl 0525.58011

The mathematical heritage of Henri Poincare, Proc. Symp. Pure Math. 39, Part 2, Bloomington/Indiana 1980, 3-30 (1983).


58E05 Abstract critical point theory (Morse theory, Lyusternik-Shnirel’man theory, etc.) in infinite-dimensional spaces
53C22 Geodesics in global differential geometry
81T08 Constructive quantum field theory
58E10 Variational problems in applications to the theory of geodesics (problems in one independent variable)
53C05 Connections (general theory)


Zbl 0512.00008