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The $\hat{A}$ genus as a projective volume form on the derived loop space. (arXiv:1211.6816v2 [math.QA] UPDATED)
来源于:arXiv
In the present work, we extend our previous work with Gwilliam by realizing
$\hat{A}(X)$ as the projective volume form associated to the BV operator in our
quanitization of a one-dimensional sigma model. We also discuss the associated
integration/expectation map. We work in the formalism of $L_\infty$ spaces,
objects of which are computationally convenient presentations for derived
stacks. Both smooth and complex geometry embed into $L_\infty$ spaces and we
specialize our results in both of these cases. 查看全文>>