PANDAExpress: a Simpler and Faster PANDA Algorithm

This paper introduces PANDAExpress, a novel algorithm that eliminates the impractical polylogarithmic factor of the original PANDA framework by employing a new probabilistic inequality and a dynamic hyperplane partitioning scheme, thereby achieving optimal, specialized-algorithm-level runtimes for conjunctive queries and disjunctive datalog rules under arbitrary degree constraints while maintaining full generality.

Mahmoud Abo Khamis, Hung Q. Ngo, Dan Suciu2026-03-05🔢 math

A stochastic optimization algorithm for revenue maximization in a service system with balking customers

This paper proposes a stochastic gradient descent algorithm that dynamically maximizes revenue in a single-server queue with balking customers by using a novel Infinitesimal Perturbation Analysis procedure to estimate effective arrival rates based solely on observable joining behavior, thereby converging to the optimal price under mild regularity conditions.

Shreehari Anand Bodas, Harsha Honnappa, Michel Mandjes + 1 more2026-03-05🔢 math

Generic twisted Pollicott--Ruelle resonances and zeta function at zero

This paper establishes that for a generic set of finite-dimensional irreducible representations of the fundamental group of a surface's unit tangent bundle, the twisted Ruelle zeta function either vanishes at zero with an order determined by the genus or equals the Reidemeister--Turaev torsion, thereby extending Fried's conjecture to generic acyclic representations and confirming the constancy of the vanishing order for untwisted zeta functions across a dense set of Anosov metrics.

Tristan Humbert, Zhongkai Tao2026-03-05🔢 math

Degenerations of CoHAs of 2-Calabi-Yau categories

This paper establishes that the degenerations of cohomological Hall algebras associated with 2-Calabi-Yau categories and preprojective algebras, with respect to the "less perverse" filtration, are isomorphic to the enveloping algebra of the current Lie algebra of the BPS Lie algebra, a result proven at the sheafified level and extended to torus-deformed settings to connect these structures with Maulik-Okounkov Yangians.

Lucien Hennecart, Shivang Jindal2026-03-05🔢 math