astro-ph.CO

• The Last Crossing in Excursion-Set Theory of Cosmic Reionization
• Lyman Break Galaxy selection and redshift measurement with supervised contrastive learning
• Reconstructing Dark Matter Mass and Discriminating Standard and Non-Standard WIMP-Nucleus Interactions with Paleo-Detectors
• Evaporation of Primordial Black Holes with Multimodal Mass and Extended Spin Distributions: Cosmological Imprints on the Effective Number of Relativistic Species
• CORN -- Chronometers of Relic Nature I: The first estimate of the expansion rate of the Universe using compact relic galaxies
• Evidence for Enhancement in the Rate of Fast Radio Bursts Toward Galaxy Clusters
• Evolution of Neutron Star Environment in the Galactic Halo : Implications for Dark Matter Accretion
• Fitting trends in quasar emission and absorption line redshifts
• Fine-tuning in mixed Dark Matter models with Primordial Black Hole relics
• Beyond Feedback: Disentangling Baryonic Effects with tSZ$\times$FRB Cross-Correlations
• Mysterious Transients in the Palomar Observatory Sky Survey (POSS-1) as profound manifestation of the Dark Matter physics
• Flat Galactic Rotation Curves Interpreted as Evidence for the Mach's Principle
• Heavy neutral leptons beyond the BBN bound: probing the lepton asymmetry of the Universe
• Scalar baryons in neutron stars
• Tabular foundation models for the estimation of probabilistic quasar photometric redshifts in S-PLUS
• The generalized second law as a thermodynamic selection criterion for dynamical dark energy
• Baryogenesis and CMB spectral distortion from Axions
• Quantum cosmological perturbations in bouncing models with mimetic dark matter
• A New Method to Simulate Dark Matter-Baryon Interactions and Application to an Isolated Disk Galaxy
• Explaining Neural Networks on the Sky: Machine Learning Interpretability for Cosmic Microwave Background Maps
• Impact of Primordial Black Hole population on 21 cm observables at high redshift
• Intertwined Constraints in Extended Cosmologies: Dark Energy, Curvature, Neutrinos, and Inflation
• Cosmic string gravitational wave backgrounds at LISA: II. Reconstruction of conventional signals over astrophysical foregrounds
• Effective reheating in Gauss--Bonnet inflation with $\mu(\phi,X)$ coupling
• Integrated cosmological memory: A dark-siren method to probe dark energy
• Induced Gravitational Waves as Cosmic Tracers of Leptogenesis
• The capture of halo material by orbiting subhaloes
• Dust and Grain Size Evolution in Galaxy Simulations: What Matters and What Does Not
• Boson star-black hole binaries: initial data and head-on collisions
• Can Primordial Black Holes Be Seeds for Early Galaxies in Models Satisfying the Covariant Entropy Bound?

cs.DS

• Online Discrepancy Minimization for Sub-Gaussian Inputs via Regularization and Restriction
• Fixed-Threshold Peeling in Sublinear MPC: Round-Approximation Tradeoffs and Applications
• A Simple Algorithm for Best Separable State
• Online Interval Selection on a Simple Chain
• Riemann GeoResolver: A Non-Euclidean Attention Framework from Euclidean Resolver to Hyperbolic-Spherical Geometry
• Straightforward Entropy-Sensitive Mergesort
• Improving TensorSketch Using Complex Random Variables
• Can LLMs be Used to Simplify Algorithms? Simpler Algorithms for Vertex Coloring and Edge Connectivity
• Connectivity Augmentation of Plane Graphs
• A 5/4 bound for graphic $s$-$t$ path TSP on subcubic graphs
• The Minimum-Weight Mixed Dominating Set on Threshold Graphs
• A Linear-Time Approximation Scheme for the Densest Subgraph Problem
• Matchings via Random Greedy Independent Set: A Simpler Algorithm and Analysis
• The sharp SAT/UNSAT phase transition in random ellipsoid fitting
• A Necessary and Sufficient Hall Condition for Hypergraphs
• Resolving Envy by Adding Goods with Bounded Supply: A Type-Count Dichotomy and Two-Agent Hardness
• Optimal fidelity estimation when one state is pure via algorithmic Uhlmann transform
• New Lower and Upper Bounds for the Grothendieck Constant
• Optimal Enumeration of Eulerian Trails in Directed Graphs
• Simpler Logarithmic Approximation Algorithms for the Optimal Decision Tree and Adaptive Set Cover
• A Fast and Simple $(1+\epsilon)$-Approximation for Minimum Spanning Trees in Doubling Metrics
• Concurrent Deterministic Skiplist and Other Data Structures
• Efficient Decomposition of Forman-Ricci Curvature on Vietoris-Rips Complexes and Data Applications
• High-Dimensional Calibration from Swap Regret
• Local Routing on Ordered $\Theta$-graphs