Coleman Principles and Krasnosel'skii Genus in Eigenfunction Problems

  • S. G. Suvorov


We consider a simple semilinear elliptic eigenfunction problem. Using it as an example, we demonstrate functional topological methods that give information on the critical numbers almost as detailed (in the qualitative sense) as in the case of separation of variables in an analogous linear problem.
How to Cite
Suvorov, S. G. “Coleman Principles and Krasnosel’skii Genus in Eigenfunction Problems”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 53, no. 7, July 2001, pp. 983-92,
Research articles