pith. sign in

arxiv: math-ph/0702045 · v4 · submitted 2007-02-14 · 🧮 math-ph · hep-th· math.MP

Invariants of algebraic curves and topological expansion

classification 🧮 math-ph hep-thmath.MP
keywords curvealgebraicinvariantsmatrixexpansionintegralmodelstopological
0
0 comments X
read the original abstract

For any arbitrary algebraic curve, we define an infinite sequence of invariants. We study their properties, in particular their variation under a variation of the curve, and their modular properties. We also study their limits when the curve becomes singular. In addition we find that they can be used to define a formal series, which satisfies formally an Hirota equation, and we thus obtain a new way of constructing a tau function attached to an algebraic curve. These invariants are constructed in order to coincide with the topological expansion of a matrix formal integral, when the algebraic curve is chosen as the large N limit of the matrix model's spectral curve. Surprisingly, we find that the same invariants also give the topological expansion of other models, in particular the matrix model with an external field, and the so-called double scaling limit of matrix models, i.e. the (p,q) minimal models of conformal field theory. As an example to illustrate the efficiency of our method, we apply it to the Kontsevitch integral, and we give a new and extremely easy proof that Kontsevitch integral depends only on odd times, and that it is a KdV tau-function.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 15 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Wormholes and Averaging over N

    hep-th 2026-05 unverdicted novelty 8.0

    Mellin averaging over N reproduces the ensemble-like randomness of wormhole physics in the gravitational path integral when the dual theory admits analytic continuation in N and observables fluctuate superpolynomially...

  2. The Super Virasoro Minimal String from 3d Supergravity

    hep-th 2026-04 unverdicted novelty 8.0

    The super Virasoro minimal string arises from quantizing 3d supergravity, with 0A+ and 0B+ dual to the bosonic minimal string matrix integral, 0B- to one with inverse square root singularity, and 0A- having vanishing ...

  3. $c=1$ strings as a matrix integral

    hep-th 2026-04 unverdicted novelty 8.0

    The c=1 string perturbative S-matrix equals a double-scaled (0+0)-dimensional matrix integral on the spectral curve x(z)=2√2 cos(z), y(z)=sin(z), establishing triality with worldsheet and matrix quantum mechanics desc...

  4. Universal formulae for correlators of a broad class of models

    hep-th 2026-04 unverdicted novelty 7.0

    Correlators of diverse models are expressed via universal formulae derived from a single defining function using KdV flows and the Gel'fand-Dikii equation.

  5. Recursive-algebraic solution of the closed string tachyon vacuum equation

    hep-th 2026-03 unverdicted novelty 7.0

    Presents a seam-graded recursive algebraic method that converts the closed string tachyon vacuum equation into a sequence of matrix inversions in the zero-momentum Lorentz-scalar sector.

  6. Recursive-algebraic solution of the closed string tachyon vacuum equation

    hep-th 2026-03 unverdicted novelty 7.0

    A seam-graded expansion turns the closed string tachyon vacuum equation algebraic at every order, reducing it to matrix inversions in the zero-momentum scalar sector.

  7. Mind the crosscap: $\tau$-scaling in non-orientable gravity and time-reversal-invariant systems

    hep-th 2025-09 unverdicted novelty 7.0

    Non-orientable topological gravity produces a resummed topological expansion whose late-time behavior matches the GOE universality class of random matrix theory for time-reversal invariant chaotic systems.

  8. Tropicalized quantum field theory and global tropical sampling

    math-ph 2025-08 unverdicted novelty 7.0

    Tropicalized massive scalar QFT is exactly solvable via a non-linear recursion for effective action coefficients that computes graph moduli space volumes, enabling a polynomial-time sampling algorithm for high-order p...

  9. Dynamical Triangulations for 2D Pure Gravity and Topological Recursion

    hep-th 2025-09 unverdicted novelty 6.0

    Schwinger-Dyson equations for 2D Euclidean pure gravity are reformulated as Chekhov-Eynard-Orantin topological recursion for basic-type, strip-type, and continuum dynamical triangulation models.

  10. Cap amplitudes in random matrix models

    hep-th 2025-09 unverdicted novelty 6.0

    Introduces cap amplitude ψ(b) in one-matrix models and interprets the dilaton equation for discrete volumes N_{g,n} as boundary gluing that reduces n by one.

  11. Surgery and statistics in 3d gravity

    hep-th 2025-06 unverdicted novelty 6.0

    Introduces RMT surgery to relate off-shell 3D gravity partition functions to CFT spectral statistics via Euclidean wormholes with four-punctured sphere and trumpet boundaries.

  12. All the D-Branes of Resurgence

    hep-th 2023-01 unverdicted novelty 6.0

    Negative-tension ZZ-branes are required by resurgence to build complete transseries for minimal-string free energies, with analytic Stokes data and extensions to JT gravity and other string models.

  13. Multicritical Dynamical Triangulations and Topological Recursion

    hep-th 2025-12 unverdicted novelty 5.0

    Topological recursion solves Schwinger-Dyson equations for multicritical and causal dynamical triangulations in 2D quantum gravity, yielding explicit amplitudes.

  14. Grothendieck's Dessins d'Enfants in a Web of Dualities. II

    math-ph 2019-06 unverdicted novelty 3.0

    Spectral curve for Eynard-Orantin recursions on dessins d'enfants is related to Narayana numbers.

  15. Quantum chaos and the holographic principle

    quant-ph 2026-04 unverdicted novelty 1.0

    A review of the chaos-assisted holographic correspondence linking the SYK model to 2D JT gravity, including the need for string theory corrections at fine quantum scales.