Let f be a holomorphic self
map of a compact complex analytic manifold X. The differential of f commutes with
∂ and, hence, induces an endomorphism of the ∂-complex of X. If f has
isolated simple fixed points, the Lefschetz formula of Atiyah-Bott expresses the
Lefschetz number of this endomorphism in terms of local data involving
only the map f near the fixed points. For example, if X is a curve, this
Lefschetz number is the sum of the residues of (z − f(z))−1 at the fixed
points.
Using a well-known technique of Atiyah-Bott for computing trace formulas, we
shall, in this note, give a direct analytic derivation of the Lefschetz number as a
residue formula. The formula is valid for holomorphic maps having isolated, but not
necessarily simple fixed points.
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