Introduction / 1: |
Graphs, ribbon graphs, and polynomials / 2: |
Graph theory: The Tutte polynomial / 2.1: |
Ribbon graphs; the Bollobás-Riordan polynomial / 2.2: |
Selected further reading / 2.3: |
Quantum field theory (QFT)-built-in combinatorics / 3: |
Definition of the scalar ¿4 model / 3.1: |
Perturbative expansion-Feynman graphs and their combinatorial weights / 3.2: |
Fourier transform-the momentum space / 3.3: |
Parametric representation of Feynman integrands / 3.4: |
The propagator and the heat kernel / 3.5: |
A glimpse of perturbative renormalization / 3.6: |
The power counting theorem / 3.6.1: |
Locality / 3.6.2: |
Multi-scale analysis / 3.6.3: |
The subtraction operator for a general Feynman graph / 3.6.4: |
Dimensional renormalization / 3.6.5: |
Dyson-Schwinger equation / 3.7: |
Combinatorial (or 0-dimensional) QFT and the intermediate field method / 3.8: |
Combinatorial (or 0-dimensionai) QFT / 3.8.1: |
The intermediate field method / 3.8.2: |
Tree weights and renormalization in QFT / 3.9: |
Preliminary results / 4.1: |
Partition tree weights / 4.2: |
Combinatorial QFT and the Jacobian Conjecture / 4.3: |
The Jacobian Conjecture as combinatorial QFT model (the Abdesselam-Rivasseau model) / 5.1: |
The intermediate field method for the Abdesselam-Rivasseau model / 5.2: |
Fermionic QFT, Grassmann calculus, and combinatorics / 5.3: |
Grassmann algebras and Grassmann calculus / 6.1: |
The Grassmann algebra / 6.1.1: |
Grassmann calculus; Pfaffians as Grassmann integrals / 6.1.2: |
On Grassmann Gaussian measures / 6.2: |
Lingström-Gessel-Viennot (LGV) formula for graphs with cycles / 6.3: |
Stembridge's formulas for graphs with cycles / 6.4: |
A generalization / 6.5: |
Tutte polynomial and the parametric representation in QFT / 6.6: |
Analytic combinatorics and QFT / 6.7: |
The Mellin transform technique / 7.1: |
The saddle point method / 7.2: |
Algebraic combinatorics and QFT / 7.3: |
Algebraic reminder; Combinatorial Hopf Algebras (CHAs) / 8.1: |
The Connes-Kreimer Hopf algebra of Feynman graphs / 8.2: |
The B+ operator, Hochschild cohomology of the Connes-Kreimer algebra / 8.3: |
Multi-scale renormaiizarion, CHA description / 8.4: |
QFT on the non-commutative Moyal space and combinatorics / 8.5: |
Mathematical setting: Renormalizability / 9.1: |
The Mehler kernel and the Grosse-Wulkenhaar model / 9.2: |
Parametric representation of Grosse-Wulkenhaar-like models / 9.3: |
The Mellin transform and the Grosse-Wulkenhaar model / 9.4: |
Dimensional renormalization for the Grosse-Wulkenhaar model / 9.5: |
A heat kernel-based renormalizable model / 9.6: |
Parametric representation and the Bollobás-Riordan polynomial / 9.7: |
Parametric representation / 9.7.1: |
Relation between the multi-variate Bollobás-Riordan and the polynomials of the parametric representation / 9.7.2: |
Combinatorial Connes-Kreimer Hopf algebra and its Hochschild cohomology / 9.8: |
Combinatorial Connes-Kreimer Hopf algebra / 9.8.1: |
Hochschild cohomology and the combinatorial DSE / 9.8.2: |
Quantum gravity, group field theory (GFT), and combinatorics / 9.9: |
Quantum gravity / 10.1: |
Main candidates for a theory of quantum gravity: The holographic principle / 10.2: |
GFT models: the Boulatov and the colourable models / 10.3: |
The multi-orientable GFT model / 10.4: |
Tadpoles and generalized tadpoles / 10.4.1: |
Tadfaces / 10.4.2: |
Saddle point method for GFT Feynman integrals / 10.5: |
Algebraic combinatorics and tensorial GFT / 10.6: |
The Ben Geloun-Rivasseau (BGR) model / 10.6.1: |
Cones-Kreimer Hopf algebraic description of the combinatorics of the renormalizability of the BGR model / 10.6.2: |
Hochschild cohomology and the combinatorial DSE for tensorial GFT / 10.6.3: |
From random matrices to random tensors / 10.7: |
The large N limit / 11.1: |
The double-scaling limit / 11.2: |
From matrices to tensors / 11.3: |
Tensor graph polynomials-a generalization of the Bollobás-Riordan polynomial / 11.4: |
Random tensor models-the U(N)D-invariant model / 11.5: |
Definition of the model and its DSE / 12.1: |
U(N)D-invariant bubble interactions / 12.1.1: |
Bubble observables / 12.1.2: |
The DSE for the model / 12.1.3: |
Navigating the following sections of the chapter / 12.1.4: |
The DSE beyond the large N limit / 12.2: |
The LO / 12.2.1: |
Moments and Cumulants / 12.2.2: |
Gaussian and non-Gaussian contributions / 12.2.3: |
The DSE at NLO / 12.2.4: |
The order 1/ND in the quartic model / 12.2.5: |
Double-scaling limit in the DSE / 12.3: |
From the quartic model to a generic model / 12.3.2: |
Random tensor models-the multi-orientable (MO) model / 12.4: |
Definition of the model / 13.1: |
The 1/N expansion and the large N limit / 13.2: |
Feynman amplitudes; the 1/N expansion / 13.2.1: |
The large N limit-the LO (melonic graphs) / 13.2.2: |
The large TV limit-the NLO / 13.2.3: |
Leading and NLO series / 13.2.4: |
Combinatorial analysis of the general term of the large N expansion / 13.3: |
Dipoles, chains, schemes, and all that / 13.3.1: |
Generating functions, asymptotic enumeration, and dominant schemes / 13.3.2: |
The two-point function / 13.4: |
The four-point function / 13.4.2: |
The 2r-point function / 13.4.3: |
Random tensor models-the O(N)3-invariant model / 13.5: |
General model and large N expansion / 14.1: |
Quartic model, large N expansion / 14.2: |
Large N expansion: LO / 14.2.1: |
NLO / 14.2.2: |
General quartic model: Critical behaviour / 14.3: |
Explicit counting of melonic graphs / 14.3.1: |
Diagrammatic equations, LO and NLO / 14.3.2: |
Singularity analysis / 14.3.3: |
Critical exponents / 14.3.4: |
The Sachdev-Ye-Kitaev (SYK) holographic model / 14.4: |
Definition of the SYK model: Its Feynman graphs / 15.1: |
Diagrammatic proof of the large N melonic dominance / 15.2: |
The coloured SYK model / 15.3: |
Definition of the model, real, and complex versions / 15.3.1: |
Diagrammatics of the real and complex model / 15.3.2: |
More on the coloured SYK Feynman graphs / 15.3.3: |
Non-Gaussian disorder average in the complex model / 15.3.4: |
SYK-like tensor models / 15.4: |
The Gurau-Witten model and its diagrammatics / 16.1: |
Two-point functions: LO, NLO, and so on / 16.1.1: |
Four-point function: LO, NLO, and so on / 16.1.2: |
The O(N)3-invariant SYK-Uke tensor model / 16.2: |
The MO SYK-like tensor model / 16.3: |
Relating MO graphs to O(N)3-invariant graphs / 16.4: |
Diagrammatic techniques for O(N)3-invariant graphs / 16.5: |
Two-edge-cuts / 16.5.1: |
Dipole removals / 16.5.2: |
Dipole insertions / 16.5.3: |
Chains of dipoles / 16.5.4: |
Face length / 16.5.5: |
The strategy / 16.5.6: |
Degree 1 graphs of the O(N)3-invariant SYK-like tensor model / 16.6: |
2PI, dipole-free graph of degree one / 16.6.1: |
The graphs of degree 1 / 16.6.2: |
Degree 3/2 graphs of the O(N)3-invariant SYK-like tensor model / 16.7: |
Examples of tree weights / A: |
Symmetric weights-complete partition / A.1: |
One singleton partition-rooted graph / A.2: |
Two singleton partition-multi-rooted graph / A.3: |
Renormalization of the Grosse-Wulkenhaar model, one-loop examples / B: |
The B+ operator in Moyal QFT, two-loop examples / C: |
One-loop analysis / C.1: |
Two-loop analysis / C.2: |
Explicit examples of GFT tensor Feynman integral computations / D: |
A non-colourable, MO tensor graph integral / D.1: |
A colourable, multi-orientable tensor graph integral / D.2: |
A non-colourable, non-multi-orientable tensor graph integral / D.3: |
Coherent states of SU(2) / E: |
Proof of the double-scaling limit of the U(N)D-invariant tensor model / F: |
Proof of Theorem 15.3.2 / G: |
Bijection with constellations / G.1: |
Bijection in the bipartite case / G.1.1: |
The non-bipartite case / G.1.2: |
Enumeration of coloured graphs of fixed order / G.2: |
Exact enumeration / G.2.1: |
The connectivity condition and SYK graphs / G.2.2: |
Preliminary conditions / G.3.1: |
The case q > 3 / G.3.2: |
The case q = 3 / G.3.3: |
Proof of Theorem 16.1.1 / G.3.4: |
Summary of results on the diagrammatics of the coloured SYK model and of the Gurau-Witten model / I: |
Bibliography |
Index |
Introduction / 1: |
Graphs, ribbon graphs, and polynomials / 2: |
Graph theory: The Tutte polynomial / 2.1: |