期刊
COMPOSITIO MATHEMATICA
卷 143, 期 5, 页码 1127-1163出版社
LONDON MATH SOC
DOI: 10.1112/S0010437X07002710
关键词
courant algebroid; vertex algebroid; gerbe; chiral differential operators
类别
We give a natural obstruction theoretic interpretation to the first Pontryagin class in terms of Courant algebroids. As an application we calculate the class of the stack of algebras of chiral differential operators. In particular, we establish the existence and uniqueness of the chiral de Rham complex.
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