ArticleOriginal scientific text

Title

Continuous mappings with an infinite number of topologically critical points

Authors 1

Affiliations

  1. Faculty of Mathematics, "Babeş-Bolyai" University, Str. Kogălniceanu 1, 3400 Cluj-Napoca, Romania

Abstract

We prove that the topological φ-category of a pair (M,N) of topological manifolds is infinite if the algebraic φ-category of the pair of fundamental groups (π₁(M),π₁(N)) is infinite. Some immediate consequences of this fact are also pointed out.

Keywords

topologically critical points, covering mappings, G-manifolds

Bibliography

  1. D. Andrica and C. Pintea, Critical points of vector-valued functions, in: Proceedings of the 24th National Conference on Geometry and Topology, Timişoara 1993.
  2. D. Rozpłoch-Nowakowska, Equivariant maps of joins of finite G-sets and an application to critical point theory, Ann. Polon. Math. 56 (1992) 195-211.
  3. K. Kawakubo, The Theory of Transformation Groups, Oxford University Press, Oxford, 1991.
  4. W. S. Massey, Algebraic Topology: An Introduction, Harcourt, Brace & World, New York, 1967.
  5. R. S. Palais and C. L. Terng, Critical Point Theory and Submanifold Geometry, Lecture Notes in Math. 1353, Springer, 1988.
  6. F. Takens, The minimal number of critical points of a function on a compact manifold and the Lusternik-Schnirelmann category, Invent. Math. 6 (1968), 197-244.
Pages:
87-93
Main language of publication
English
Received
1996-03-20
Accepted
1996-07-26
Published
1997
Exact and natural sciences