We introduce the notion of Atiyah class of a generalized holomorphic vector bundle, which captures the obstruction to the existence of generalized holomorphic connections on the bundle. As in the classical holomorphic case, this Atiyah class can be defined in three different ways: using Cech cohomology, using the first-jet short exact sequence, or adopting the Lie pair point of view.& COPY; 2023 Elsevier B.V. All rights reserved.
机构:
Univ Fed Rio de Janeiro, Inst Matemat, BR-21945970 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Matemat, BR-21945970 Rio De Janeiro, Brazil
Morales, C.
Soares, A.
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Ctr Fed Educ Tecnol Celso Suckow da Fonseca, Dept Matemat, BR-20271110 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Matemat, BR-21945970 Rio De Janeiro, Brazil