Nitin Kumar

Max Planck Institute for Mathematics, Bonn

Going to climb spectacular megafauna
Canoeing with Ruben


I'm Nitin Chidambaram, a postdoc at the Max Planck Institute for Mathematics, Bonn working with Gaetan Borot . In July 2020, I defended my PhD at the University of Alberta where I was supervised by Vincent Bouchard and David Favero .

I'm broadly interested in algebraic geometry and what ideas from string theory can teach us about geometry. I've spent some time thinking about the Eynard-Orantin topological recursion in connection to enumerative geometry, and I'm currently trying to understand various contexts in which Airy structures produce physically and/or geometrically interesting invariants. I'm also interested in derived categories, especially in the context of the Bondal-Orlov conjecture on flops (i.e., the relationship to birational geometry), and I'm pursuing an approach to this conjecture using the notion of windows.

You can also take a look at my CV below.

Download my CV

Publications and Preprints

Here is a list of all my publications and preprints:

Relations on $\overline{\mathcal{M}}_{g,n} $ and the negative r-spin Witten conjecture
(with Garcia-Failde and Giacchetto, 51 pages)
arXiv:2205.15621 [math.AG]
Shifted Witten classes and topological recursion
(with Charbonnier, Garcia-Failde and Giacchetto, 34 pages)
arXiv:2203.16523 [math.AG] (submitted)
Whittaker vectors for W-algebras from topological recursion
(with Borot, Bouchard and Creutzig, 79 pages)
arXiv:2104.04516v1 [math-ph] (submitted)
Windows for cdgas
(with Favero, 29 pages)
Adv. Math. 379 (2021), 107553.
Kernels for Grassmann Flops
(with Ballard, Favero, McFaddin and Vandermolen, 27 pages)
J. Math. Pures Appl. (9) 147 (2021), 29–59.
Higher Airy Structures, W algebras and topological recursion
(with Borot, Bouchard, Creutzig and Noschenko, 93 pages)
arXiv:1812.08738[math-ph] (accepted in Memoirs of the AMS)
Quantizing Weierstrass
(with Bouchard and Dauphinee, 40 pages)
Commun. Num. Theor. Phys. 12 253-303. (2018)
Canonical Structure of the E10 Model and Supersymmetry
(with Kleinschmidt and Nicolai, 40 pages)
Phys. Rev. D 91, 085039. (2015)

Or equivalently, here is the list on the arXiv :

Other things I like to do

When I'm not doing math, I try to get outdoors as much as possible - climbing, skiing, or running for example. Recently, I've been learning to crack climb in Ettringen! Here are some pictures.

Sinster 7 finish line, 2019


My first 100-mile race: Sinster 7 at Crowsnest Pass

Ski touring

St. Nicholas peak on the Wapta Icefields

Rock climbing

"I cant believe it's a girdle", Joshua Tree

Contact Me

If you would like to talk about math (or go climbing/running), you can find me at