Yuexin Liao

Undergraduate Student, California Institute of Technology

About Me

I am Yuexin Liao, a senior student at Caltech. I am passionate about creating new theories at the intersection of mathematics, computer science, and economics. My research concentrates on partial differential equations, dynamical systems, machine learning, and decision theory.

At the core of my work is a rigorous exploration and formulation of distribution laws—whether manifesting as intricate statistical patterns in data science, or analytical structures and abstract probabilistic frameworks within pure mathematics.

I perceive programming as a formal linguistic framework, language itself as a hierarchy of structural abstractions, and mathematics as the foundational syntax describing universal regularities. This integrated and generative perspective fuels my enthusiasm for theoretical elegance, structural unification, and deep explanatory power.

I am deeply committed to continually constructing and refining high-level theoretical frameworks and applying them rigorously to address meaningful real-world problems.

📄 This is my CV: Download CV

Publications & Research

Selected Papers
Y. Liao, K. Saito, A. Sandroni
Submitted
Y. Liao, C. Liu, X. Yang
Submitted
O. Jenkinson, X. Li, Y. Liao, Y. Zhang
Submitted
O. Jenkinson, X. Li, Y. Liao, Y. Zhang
Submitted
Other Work
Y. Liao, E. Mill
Accepted at Blockchain: Research and Applications
E. Mill, S. Anyomi, Y. Liao
Accepted at Finance Research Letters
Work in Progress
A High-Efficiency Numerical Solver for Differentiable Convex Optimization: A Graph-Theoretic Approach to Applications in Machine Learning, Trustworthy AI, and Econometrics
This work can produce separate papers: (1) Statistical inference methods for incomplete data scenarios, and (2) Embedding economic axioms into deep learning frameworks to ensure trustworthy outputs.
Draft, polishing for arXiv (available upon request)
Network Flow Probabilistic Approach to Analyze Decision Phenomena
Draft, polishing for arXiv (available upon request)
Analytic Dissection of the Weak Order Flow Polytope: A Combinatorial Parametrization and Exact Volume Formula for some n
Draft, polishing for arXiv (available upon request)

Ongoing work is largely completed and currently being polished for posting on arXiv.

Research Notes

From Statistical Imitation to Rational Inference: The Quantum Path Forward for AI
Exploratory essay on bridging AI reasoning with quantum computation for enhanced control and optimization.
Low Influence and Spectral Concentration: The Invariance Principle, Majority is Stablest, and Junta Approximations
Notes exploring the invariance principle, majority is stablest, and junta approximations and their application in social science and algorithm.
Aletheia – Four-Color Theorem Proof Game
A playful, exploratory game I developed for engaging with the Four-Color Theorem—game-style exploration of a century-old mathematical challenge.
Numerical Methods for Solving Partial Differential Equations
Numerical Methods for Solving Ordinary Differential Equations
A Review of Diffusion-Based Sampling Methods: Langevin Algorithms, Discretization, and the Schr ̈odinger Bridge Formulation
Special topics in stochastic calculus
Catogery theory
Some Topics in Modern Theoretical Statistics
Complex Analysis
Optimization Techniques in Network Systems: From User Equilibrium to System Optimum
Nonparametric Analysis of Random Utility Models: Computational Tools for Statistical Testing
Uniformly Expanding Coupled Maps: Self-Consistent Transfer Operators and Propagation of Chaos
A Comparative Study of Ergodic Optimization and Weak KAM Theory
Qualitative Analysis of Partial Differential Equations
A generalization in matrix analysis
Counterexample to the Birkhoff–von Neumann Theorem in Higher Dimensions
Topological Dynamical System in Ramsey Theory
Geometric machine learning combined with probability theory
Exponential Concentration: A Comprehensive Tutorial
Some advanced optimization techniques related to dimensionality
Introduction to De Rham’s Theorem
Proofs of the Hodge Decomposition Theorem and the Spectral Theorem for Elliptic Operators
Integrable Systems of Partial Differential Equations
A Practitioner-Friendly Guide to Deep Research
Only parts of my notes are displayed here; further insights and expository notes can be found on my WeChat public account prooftrivial.

Contact Information

WeChat

singularity_math

Research Notes

WeChat Public Account: ProofTrivial

Advanced topics in analysis, optimal transport, computational rationalizability, integrable systems, category theory and so on