activity
20202026
most citedDistinquishing 4d N=2 SCFTs

5 citations · 10 across the 6 of their papers we have counts for

collaborators

8 papers

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…

cs.LG2026

A Training-Time Diagnostic for Generalization via the Log-Alignment Ratio

Ali Shehper, Ashish Vaswani

We study the log-alignment ratio (LAR), a measure of parameter-activation alignment, introduced in parameterization theory. We reformulate it as the overlap between a weight spectr…

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…

hep-th2021

Nonabelian Twists of the Theory

Jacques Distler, Behzat Ergun, Ali Shehper

We study theories of type in class-S, with nonabelian outer-automorphism twists around various cycles of the punctured Riemann surface . We propose an extension of previou…

hep-th2021★ 5 cited

Symmetries of 2d TQFTs and Equivariant Verlinde Formulae for General Groups

Sergei Gukov, Du Pei, Charles Reid +1

We study (generalized) discrete symmetries of 2d semisimple TQFTs. These are 2d TQFTs whose fusion rules can be diagonalized. We show that, in this special basis, the 0-form symmet…

hep-th2020★ 5 cited

Distinquishing 4d N=2 SCFTs

Jacques Distler, Behzat Ergun, Ali Shehper

We construct a family of examples of pairs of 4d N=2 SCFTs whose graded Coulomb branch dimensions, Weyl-anomaly coefficients and flavour symmetry algebras and levels coincide, but…

hep-th2020

Deformations of surface defect moduli spaces

Andrew Neitzke, Ali Shehper

Given a 4d supersymmetric theory with an supersymmetric surface defect, a marginal perturbation of the bulk theory induces a complex structure…