×

A generalization of the Poincaré-Birkhoff theorem. (English) Zbl 0522.55005


MSC:

55M25 Degree, winding number
57N05 Topology of the Euclidean \(2\)-space, \(2\)-manifolds (MSC2010)
54H25 Fixed-point and coincidence theorems (topological aspects)
PDF BibTeX XML Cite
Full Text: DOI