Chiral differential operators on supermanifolds
Chiral differential operators on supermanifolds
复制标题
超流形上的手性微分算子
DOI:
10.1007/s00209-011-0930-7
复制
发表时间:
2011
影响因子:
0.8
通讯作者:
Cheung P
中科院分区:
文献类型:
--
作者:
Cheung P
The first part of this paper provides a new description of chiral differential operators (CDOs) in terms of global geometric quantities. The main result is a recipe to define all sheaves of CDOs on a smooth cs-manifold; its ingredients consist of an affine connection ∇ and an even 3-form that trivializesp1(∇). With ∇ fixed, two suitable 3-forms define isomorphic sheaves of CDOs if and only if their difference is exact. Moreover, conformal structures are in one-to-one correspondence with even 1-forms that trivializec1(∇). Applying our work in the first part, we then construct what may be called “chiral Dolbeault complexes” of a complex manifoldM, and analyze conditions under which these differential vertex superalgebras admit compatible conformal structures or extra gradings (by fermion numbers). WhenMis compact, their cohomology computes (in various cases) the Witten genus, the two-variable elliptic genus and a spincversion of the Witten genus. This part contains some new results as well as provides a geometric formulation of certain known facts from the study of holomorphic CDOs andσ-models.
登录
查看更多内容
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
Qingtao Chen;F. Han;F. Han;Weiping Zhang
通讯作者:
Weiping Zhang
影响因子:
3.1
作者:
L. Borisov;A. Libgober
通讯作者:
A. Libgober
影响因子:
1.8
作者:
David Ben;Reimundo Heluani;M. Szczesny
通讯作者:
M. Szczesny
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
A. Kapustin
通讯作者:
A. Kapustin
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
V. Gorbounov;F. Malikov;V. Schechtman
通讯作者:
V. Schechtman