Summing over indices we will get then the factor nN where N = N (Dk ) is the number of index loops in the digram.
Gibbs and Quantum Discrete Spaces
Zhou, Localization, Feynman digrams and a string duality, preprint.
A Conjecture on Hodge Integrals
For a partition π , we take the largest square that ﬁts inside the Ferrers digram of π starting from the lower left corner.
Generalized higher order spt-functions
Right ﬁgure: the speed of the separating shock d i (t) is given by the Rankine-Hugoniot condition, i.e., the slope of line segment on the fundamental digram that connects (qlef t , 0) and (qright , 1).
A Continuous-time Link-based Kinematic Wave Model for Dynamic Traffic Networks
We note, however, that the diﬃculties which appear at the four-loop level are a large number of digrams with high-dimension integrations and overlapping UV divergencies.
Precision Study of Positronium: Testing Bound State QED Theory