Unequal Error Protection for Digital Semantic Communication with Channel Coding

This paper proposes two novel unequal error protection frameworks for digital semantic communication that leverage learned bit-flip probabilities to assign heterogeneous reliability levels, demonstrating that partitioning semantic bits into short blocks with tailored channel codes significantly outperforms conventional equal-protection schemes in both task performance and transmission efficiency.

Seonjung Kim, Yongjeong Oh, Yongjune Kim, Namyoon Lee, Yo-Seb Jeon2026-03-09🔢 math

Birational Invariants from Hodge Structures and Quantum Multiplication

This paper introduces "Hodge atoms," new birational invariants constructed by combining rational Gromov-Witten invariants with Hodge theory via F-bundles, which are used to prove the irrationality of very general cubic fourfolds, reprove the equality of Hodge numbers for birational Calabi-Yau manifolds, and provide new obstructions to rationality over non-algebraically closed fields.

Ludmil Katzarkov, Maxim Kontsevich, Tony Pantev, Tony Yue YU2026-03-09🔢 math

Solving Approximation Tasks with Greedy Deep Kernel Methods

This paper introduces deep kernel greedy models that combine the computational efficiency and provable convergence of greedy sparse approximation with the enhanced expressiveness of deep, multilayer kernels, demonstrating superior approximation accuracy over standard kernels and neural networks across various scientific applications.

Marian Klink, Tobias Ehring, Robin Herkert, Robin Lautenschlager, Dominik Göddeke, Bernard Haasdonk2026-03-09🔢 math

Proof by Mechanization: Cubic Diophantine Equation Satisfiability is Σ10Σ^0_1-Complete

This paper establishes the Σ10\Sigma^0_1-completeness and undecidability of satisfiability for single cubic Diophantine equations over natural numbers by constructing a uniform primitive recursive compiler that translates arithmetic provability into cubic constraints, ultimately yielding a single explicit universal cubic polynomial verified via mechanization in Rocq.

Milan Rosko2026-03-09🔢 math

Data-Driven Bed Capacity Planning Using Mt/Gt/M_t/G_t/\infty Queueing Models with an Application to Neonatal Intensive Care Units

This paper proposes a data-driven framework using time-varying Mt/Gt/M_t/G_t/\infty queueing models to improve long-term ICU capacity planning by capturing fluctuating admission rates and heterogeneous length-of-stay distributions, demonstrating that static heuristics like the 85% occupancy rule are inadequate for managing real-world demand variability in neonatal intensive care units.

Maryam Akbari-Moghaddam, Douglas G. Down, Na Li, Catherine Eastwood, Ayman Abou Mehrem, Alexandra Howlett2026-03-09🔢 math

Non-Monotone Traveling Waves of the Weak Competition Lotka-Volterra System

This paper establishes the existence of traveling wave solutions, including non-monotone waves and front-pulse waves, for the two-species weak competition Lotka-Volterra system across all wave speeds sss \geq s^*, with a rigorous proof for the critical speed case and the first-time demonstration of front-pulse waves in the critical weak competition regime.

Chiun-Chuan Chen, Ting-Yang Hsiao, Shun-Chieh Wang2026-03-09🔢 math

Mosco-convergence of Cheeger energies on varying spaces satisfying curvature dimension conditions

This paper establishes the Mosco-convergence of Cheeger energies on Gromov-Hausdorff converging spaces satisfying curvature-dimension conditions by employing a Lagrangian approach that combines Wasserstein geodesic stability with nonsmooth calculus duality, thereby ensuring the continuity of Neumann eigenvalues even in infinite-dimensional settings.

Francesco Nobili, Federico Renzi, Federico Vitillaro2026-03-09🔢 math

Gibbs polystability of Fano manifolds, stability thresholds and symmetry breaking

This paper extends the probabilistic construction of Kähler-Einstein metrics to Fano manifolds with non-discrete automorphism groups by introducing Gibbs polystability and symmetry-breaking via moment map constraints, conjecturing its equivalence to metric existence and the emergence of unique metrics in the large-N limit, while proving these results for log Fano curves and deriving a strengthened logarithmic Hardy-Littlewood-Sobolev inequality with optimal stability constants.

Rolf Andreasson, Robert J. Berman, Ludvig Svensson2026-03-09🔢 math

On the Tail Transition of First Arrival Position Channels: From Cauchy to Exponential Decay

This paper characterizes the transition of first arrival position channel noise from heavy-tailed Cauchy to exponentially decaying distributions under nonzero drift, identifying a characteristic propagation distance that delineates diffusion-dominated and drift-dominated regimes while demonstrating that Gaussian approximations fail to capture communication potential in low-drift environments.

Yen-Chi Lee2026-03-09🔢 math

Equi-integrable approximation of Sobolev mappings between manifolds

This paper establishes that limits of sequences of smooth maps between compact Riemannian manifolds with equi-integrable W1,pW^{1, p}-Sobolev energy can always be strongly approximated by smooth maps, thereby extending Hang's density result to integer p2p \ge 2 and providing proofs for higher-order and fractional Sobolev spaces as well as cases governed by the Bethuel-Demengel-Colon-Hélein cohomological criterion.

Jean Van Schaftingen2026-03-09🔢 math