A Poincar\'e-Hopf type formula for Chern character numbers
classification
🧮 math.GT
math.DG
keywords
e-hopfformulapoincarvectorbundlescharactercherncomplex
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For two complex vector bundles admitting a homomorphism with isolated singularities between them, we establish a Poincar\'e-Hopf type formula for the difference of the Chern character numbers of these two vector bundles. As a consequence, we extend the original Poincar\'e-Hopf index formula to the case of complex vector fields (to appear in Mathematische Zeitschrift)
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