A Lock-Free Work-Stealing Algorithm for Bulk Operations

This paper presents a specialized lock-free work-stealing queue designed for a master-worker framework in mixed-integer programming solvers that leverages restricted concurrency assumptions to support native bulk operations and achieve constant-latency push performance, significantly outperforming general-purpose implementations like C++ Taskflow in batch processing scenarios.

Raja Sai Nandhan Yadav Kataru, Danial Davarnia, Ali Jannesari2026-03-09🔢 math

Unitary and Nonunitary Representations of the Heisenberg-Weyl Lie Algebra

This paper provides a detailed Lie-algebraic analysis of the Heisenberg-Weyl Lie algebra by constructing explicit unitary intertwining operators for tensor products of its Schrödinger representations and proving that finite-dimensional irreducible representations of the symplectic Lie algebra sp2n+2(R)\mathfrak{sp}_{2n+2}(\mathbb{R}) yield a large family of finite-dimensional, nonunitary indecomposable representations when restricted to hwn\mathfrak{hw}_n.

Andrew Douglas, Hubert de Guise, Joe Repka2026-03-09🔢 math

On the defocusing stationary nonlinear Schrödinger equation on metric graphs

This paper investigates the existence, stability, and multiplicity of ground states and stationary solutions for the defocusing nonlinear Schrödinger equation on noncompact metric graphs, establishing that while small masses always yield stable ground states, large masses lead to non-existence in the subcritical regime, with specific sharp thresholds and bifurcation behaviors identified under δ\delta-type vertex conditions.

Élio Durand-Simonnet, Damien Galant, Boris Shakarov2026-03-09🔢 math

Nonlinear Conjugate Gradient Method for Multiobjective Optimization Problems of Interval-Valued Maps

This paper proposes a nonlinear conjugate gradient method with Wolfe line search for solving unconstrained multiobjective interval optimization problems, providing proofs of global convergence for general and specific algorithmic parameters (Fletcher-Reeves, Conjugate Descent, Dai-Yuan, and modified Dai-Yuan) alongside numerical performance evaluations.

Tapas Mondal, Debdas Ghosh, Jingxin Liu, Jie Li2026-03-09🔢 math