Welcome!
My name is Tianlong Nan.
I'm a forth-year PhD student in Operations Research at Columbia University, advised by Prof. Christian Kroer.
My research focuses on problems at the intersection of optimization, game theory, and artificial intelligence.
I completed my undergraduate studies at Peking University.
Mudd 331
500 W 120th St, New York, NY 10027
Research Interest
- Algorithmic Game Theory
- Market Equilibrium
- Artificial Intelligence
- Large-scale Optimization
- Machine Learning
Articles
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Tâtonnement Dynamics for Fisher Markets with Chores.
ACM Symposium on Theory of Computing, 2026.
Bhaskar Ray Chaudhury, Christian Kroer, Ruta Mehta, Tianlong Nan (alphabetical order).
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On the 𝒪(1/T) Convergence of Alternating Gradient Descent-Ascent in Bilinear Games.
International Conference on Learning Representations, 2026.
Tianlong Nan, Shuvomoy Das Gupta, Garud Iyengar, Christian Kroer.
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On the Convergence of Tâtonnement for Linear Fisher Markets.
AAAI Conference on Artificial Intelligence (Oral), 2025.
Tianlong Nan, Yuan Gao, Christian Kroer.
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Competitive Equilibrium for Chores: from Dual Eisenberg-Gale to a Fast, Greedy, LP-based Algorithm.
ACM Conference on Economics and Computation, 2024.
Bhaskar Ray Chaudhury, Christian Kroer, Ruta Mehta, Tianlong Nan (alphabetical order).
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Fast and Interpretable Dynamics for Fisher Markets via Block-Coordinate Updates.
AAAI Conference on Artificial Intelligence (Oral), 2023.
Tianlong Nan, Yuan Gao, Christian Kroer.