Non-Centred Volatility Models Score Better on Forecast Distributions
Preprint finds non-centred volatility scores 6% to 15% higher on density forecasts, while point-forecast differences stay below 1%.
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A new sketching bound narrows a gap in tensor algorithms
Preprint: A mathematical analysis reports near-linear sketch dimensions for fixed-order Khatri-Rao embeddings under specific distribution assumptions.
Atmospheric-Neutrino Simulation Predicts Thousands of Single-Signal Events
Preprint: A Monte Carlo study estimates how atmospheric neutrinos could produce prompt-only events in a large liquid-scintillator detector, and where model uncertainty is greatest.
Preprint reports H-band interferometer signal at 188 pW per nanometre
A laboratory proof of concept reached a signal-to-noise ratio above 2 in 0.4 milliseconds, but it tested only one H-band spectral channel.
Released models improve gas adsorption predictions in MOFs
Preprint: A broad dataset and two machine-learning models match selected tests while improving predictions of carbon-dioxide adsorption.
Preprint reports faster simulations of graphene heat transport
A synthetic iterative scheme converged faster than conventional source iteration in deterministic tests, while matching the same discrete results.
Simple color forecast beat trained models on unseen copper
Preprint: A two-recording test found that a parameter-free color extrapolator beat trained forecasters on an unseen copper specimen.
Review Links Lead Perovskite Transport to a Soft, Shifting Lattice
Preprint review says one soft-polar framework may connect unusual transport, screening and lattice motion, but defects and polar order remain unresolved.
Robot Study Finds Gesture Commands Hold Up Better in Unseen Tests
Preprint: One pretrained robot model had higher success with language-plus-gesture and gesture-only commands than with language alone in several unseen tests.
Blue Field Ultra-Diffuse Galaxies Resemble Dwarfs in Star Formation
Preprint: Spectroscopy confirmed nine of 17 blue field candidates as ultra-diffuse galaxies, while dust and aperture corrections affected classification and estimated star formation.
Preprint: Photon emission varies more by exit charge than target material
A laboratory coincidence experiment tracked photons from helium ions transmitted through carbon, silicon and silicon carbide.
Preprint reports higher LLM scores with NVFP4 scale refinement
Tests across text-only Qwen3 and LLaMA configurations reported higher suite averages while inference cost stayed unchanged.
Microfluidic test untangles surfactant adsorption and transport
Preprint: C10 E8 showed an adsorption-sensitive pattern, while SDS was better described when short-lived transport beneath the interface was included.
Preprint offers conditional test for large-exponent Fermat solutions
A conditional analysis excludes relevant solutions at sufficiently large prime exponents in selected number fields and identifies an imaginary quadratic family with relative density 5/6.
Adaptive forecast weighting leads three datasets, but not all
Preprint: An arXiv manuscript dated 28 Aug 2026 reports the best aggregate losses in three online datasets, but mixed rankings across M4 regimes.
New finite-field polynomial family comes with exact counts
Preprint: The new family has a group whose non-identity elements have no fixed points, an explicit companion polynomial and exact formulas for related families.
New Bounds Clarify How Harmonic Maps Behave in the Unit Disk
A theoretical preprint reports Hardy and weighted-Bergman guarantees for broad, quasi-subordinate and odd mapping classes.
High-order wave model stays stable through 50 periods in most tests
An arXiv preprint reports a high-order method for nonlinear water waves, including one much faster comparison and a highly nonlinear wall case that broke down.
A model predicts a time crystal with a self-formed oscillating boundary
A theoretical preprint reports a vacuum-like region and a chaotic bulk separated by a sharp front that oscillates regularly.
AI agents score higher with verifier-guided training, preprint reports
A preprint reports higher scores on two benchmarks using a method designed to trace useful earlier actions without rewarding an incorrect final decision.