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introduced him into this subject years before and whose book Kiang 1979
Computation of the Nielsen number
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a o f abelian base point class of period class p Fix(f classes of f Coker(l commutative diagram compact connected polyhedron compact polyhedron conjugacy class COROLLARY correspondence covering translations cyclic homotopy defined DEFINITION epimorphism essential fixed point Euler characteristic eventually commutative EXAMPLE f-orbit fiber map f fiber translation finite Fix(f Fix(g fixed point class fixed point index fixed point theory fixed-point-class FPC(f functor fundamental group g o f hence homomorphism homotopy H homotopy invariance homotopy lifting property homotopy type implies N(f index(f index(f,p Fix(f isolated fixed point isolated set least number Lemma Let f lifting class lifting f lifting of f map g MF[f mod K fixed morphism n p Fix(f N(fb NFn(f Nielsen number Nielsen theory normal subgroup number of fixed ordinary fixed point periodic point classes point of f polyhedra PROOF PROPOSITION reference lifting set of fixed tt^X universal covering space