A proof is given of the fact that the real projective plane has the Wecken property, i.e. for every selfmap , the minimum number of fixed points among all selfmaps homotopic to f is equal to the Nielsen number N(f) of f.
@article{bwmeta1.element.bwnjournal-article-bcpv49i1p223bwm, author = {Jiang, Boju}, title = {The Wecken property of the projective plane}, journal = {Banach Center Publications}, volume = {50}, year = {1999}, pages = {223-225}, zbl = {0938.55004}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-bcpv49i1p223bwm} }
Jiang, Boju. The Wecken property of the projective plane. Banach Center Publications, Tome 50 (1999) pp. 223-225. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-bcpv49i1p223bwm/
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