collaborators

7 papers

math.CO2026

New Records for the Hadamard Maximal Determinant Problem

Giorgi Butbaia, Pragatheeswaran Vipulanandan, Justin Tan +6

The Hadamard maximal determinant problem seeks an matrix with entries in , which maximizes the determinant for a given order $n \in…

cs.DM2026

New Snake-in-the-Box Records via Snakepit Surgery and Learned Construction

Paul Orland, Lucas Fagan, Michele Tarquini +7

The snake-in-the-box problem asks for a longest induced path in the hypercube graph . We find a length-191 snake in dimension , the lowest dimension where the maximum is…

cs.LG2026

Hierarchical Reinforcement Learning for Sparse-Reward Search in Commutative Algebra

Giorgi Butbaia, Paul Orland, Coco Huang +7

Applying machine learning techniques to solving long-standing mathematical conjectures can be particularly challenging due to their extreme reward sparsity. As an illustrative exam…

cs.LG2026

The Two-Hump Problem: Bridging the Difficulty Gap in Mathematical Reinforcement Learning

Lucas Fagan, Michele Tarquini, Ali Shehper +6

Mathematical search problems present a unique challenge for Reinforcement Learning (RL) due to vast search spaces and sparse rewards. In previous works, the Andrews-Curtis (AC) con…

math.GT2024

Stable Andrews-Curtis Conjecture via Fake Surfaces and Zeeman Conjecture

Lucas Fagan, Yang Qiu, Zhenghan Wang

We propose an induction scheme that aims at establishing the stable Andrews-Curtis conjecture in the affirmative. The stable Andrews-Curtis conjecture is equivalent to the conjectu…

cs.LG2024

What makes math problems hard for reinforcement learning: a case study

Ali Shehper, Anibal M. Medina-Mardones, Lucas Fagan +6

Using a long-standing conjecture from combinatorial group theory, we explore, from multiple perspectives, the challenges of finding rare instances carrying disproportionately high…

math.GT2024

Classification of Cellular Fake Surfaces

Lucas Fagan, Yang Qiu, Zhenghan Wang

Generic polyhedra are interesting mathematical objects to study in their own right. In this paper, we initialize a systematic study of two-dimensional generic polyhedra with an eye…