Topological recursion for Kadomtsev–Petviashvili tau functions of hypergeometric type

B Bychkov, P Dunin‐Barkowski… - Journal of the …, 2024 - Wiley Online Library
We study the nn‐point differentials corresponding to Kadomtsev–Petviashvili (KP) tau
functions of hypergeometric type (also known as Orlov–Scherbin partition functions), with an …

[HTML][HTML] W1+∞ and W˜ algebras, and Ward identities

Y Drachov, A Mironov, A Popolitov - Physics Letters B, 2024 - Elsevier
It was demonstrated recently that the W 1+∞ algebra contains commutative subalgebras
associated with all integer slope rays (including the vertical one). In this paper, we realize …

Gromov-Witten/Hilbert versus AdS3/CFT2 Correspondence

W Lerche - arXiv preprint arXiv:2310.15237, 2023 - arxiv.org
We consider the boundary dual of AdS3xS3xK3 for NS5-flux Q5= 1, which is described by a
sigma model with target space given by the d-fold symmetric product of K3. Building on …

[HTML][HTML] Stable tree expressions with Omega-classes and double ramification cycles

X Blot, D Lewański, P Rossi, S Shadrin - Journal of Geometry and Physics, 2025 - Elsevier
We propose a new system of conjectural relations in the tautological ring of the moduli
space of curves involving stable rooted trees with level structure decorated by Hodge and Ω …

Double Hurwitz numbers: polynomiality, topological recursion and intersection theory

G Borot, N Do, M Karev, D Lewański… - Mathematische …, 2023 - Springer
Double Hurwitz numbers enumerate branched covers of CP 1 with prescribed ramification
over two points and simple ramification elsewhere. In contrast to the single case, their …

Topological recursion for generalised Kontsevich graphs and r-spin intersection numbers

R Belliard, S Charbonnier, B Eynard… - arXiv preprint arXiv …, 2021 - arxiv.org
Kontsevich introduced certain ribbon graphs as cell decompositions for combinatorial
models of moduli spaces of complex curves with boundaries in his proof of Witten's …

A new spin on Hurwitz theory and ELSV via theta characteristics

A Giacchetto, R Kramer, D Lewański - arXiv preprint arXiv:2104.05697, 2021 - arxiv.org
We study spin Hurwitz numbers, which count ramified covers of the Riemann sphere with a
sign coming from a theta characteristic. These numbers are known to be related to Gromov …

Higher Airy structures and topological recursion for singular spectral curves

G Borot, R Kramer, Y Schüler - Annales de l'Institut Henri Poincaré D, 2024 - ems.press
We give elements towards the classification of quantum Airy structures based on the W. glr/-
algebras at self-dual level based on twisted modules of the Heisenberg VOA of glr for twists …

Les Houches lecture notes on topological recursion

V Bouchard - arXiv preprint arXiv:2409.06657, 2024 - arxiv.org
You may have seen the words" topological recursion" mentioned in papers on matrix
models, Hurwitz theory, Gromov-Witten theory, topological string theory, knot theory …

[HTML][HTML] Connection between cut-and-join and Casimir operators

A Mironov, A Morozov, A Zhabin - Physics Letters B, 2021 - Elsevier
We study cut-and-join operators for spin Hurwitz partition functions. We provide explicit
expressions for these operators in terms of derivatives in p-variables without straightforward …