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- W2063697274 abstract "We generalize the computation of Feynman integrals of log divergent graphs in terms of the Kirchhoff polynomial to the case of graphs with both fermionic and bosonic edges, to which we assign a set of ordinary and Grassmann variables. This procedure gives a computation of the Feynman integrals in terms of a period on a supermanifold, for graphs admitting a basis of the first homology satisfying a condition generalizing the log divergence in this context. The analog in this setting of the graph hypersurfaces is a graph supermanifold given by the divisor of zeros and poles of the Berezinian of a matrix associated to the graph, inside a superprojective space. We introduce a Grothendieck group for supermanifolds and we identify the subgroup generated by the graph supermanifolds. This can be seen as a general procedure to construct interesting classes of supermanifolds with associated periods." @default.
- W2063697274 created "2016-06-24" @default.
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- W2063697274 date "2008-07-04" @default.
- W2063697274 modified "2023-09-27" @default.
- W2063697274 title "Supermanifolds from Feynman graphs" @default.
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- W2063697274 doi "https://doi.org/10.1088/1751-8113/41/31/315402" @default.
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