A theorem of Poincaré-Hopf type
نویسنده
چکیده
We compute (algebraically) the Euler characteristic of a complex of sheaves with constructible cohomology. A stratified Poincaré-Hopf formula is then a consequence of the smooth Poincaré-Hopf theorem and of additivity of the Euler-Poincaré characteristic with compact supports, once we have a suitable definition of index. AMS classification: 55N33 57R25
منابع مشابه
A Poincaré-birkhoff-witt Theorem for Hopf Algebras with Central Hopf Algebra Coradical
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