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AI & Data Science Preprint PDF DOI

CasLayout: Cascaded 3D Layout Diffusion for Indoor Scene Synthesis with Implicit Relation Modeling

Yingrui Wu, Youkang Kong, Mingyang Zhao, Weize Quan, Dong-Ming Yan, Yang Liu · 2026

Synthesizing realistic 3D indoor scenes remains challenging due to data scarcity and the difficulty of simultaneously enforcing global architectural constraints and local semantic consistency. Existin…

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Mathematics Preprint PDF DOI

A result on the generic Picard number of surfaces in fake weighted projective 3-spaces

Julius Giesler · 2026

We give a criterion for certain generic nondegenerate surfaces in a fake weighted projective $3$-space to have Picard number $>1$. These algebraic surfaces are of general type. We do this by consideri…

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Mathematics Preprint PDF DOI

Partition division maps, symmetric functions and positivity

Per Alexandersson, Lilan Dai · 2026

We introduce a linear map on symmetric functions that 'divides' a partition by a positive integer $k$, sending a Schur function indexed by a partition of $kn$ to a symmetric function indexed by partit…

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Engineering Preprint PDF DOI

An analysis of sensor selection for fruit picking with suction-based grippers

Eva Krueger, Marcus Rosette, Joseph R. Davidson · 2026

Robotic fruit harvesting often fails to reliably detect whether a fruit has been successfully picked, limiting efficiency and increasing crop damage. This problem is difficult due to compliant fruit a…

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Earth & Environmental Sciences Preprint PDF DOI

ORCHARD: A General Planetary Evolution Code

Roberto Tejada Arevalo, Adam Burrows, Ankan Sur, Yubo Su · 2026

We present \texttt{ORCHARD}, a publicly available planetary evolution code based on the gas giant evolution code, \texttt{APPLE}, capable of modeling the evolution and structures of terrestrial, super…

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Mathematics Preprint PDF DOI

Hybrid Conjecture in a Mixed Shimura variety

Rodolphe Richard, Andrei Yafaev · 2026

The authors previously formulated the hybrid conjecture, unifying Andr\'e-Pink-Zannier and Andr\'e-Oort conjectures, and proved it in Shimura varieties of abelian type. We study its analogue for mixed…

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Computer Science Preprint PDF DOI

Direction-Dependent Path Loss Modeling in Olive Orchards for Precision Agriculture

Mohammad Rowhani Sistani, Katarzyna Kosek-Szott, Pierluigi Gallo · 2026

Wireless links deployed in orchards often exhibit significant variability in the strength of the received signal that is not adequately captured by classical distance-based propagation models. In row-…

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Physics Preprint PDF DOI

VASCO: A fully automated CASA pipeline for large volume VLBI data calibration

A. Kumar, C. Casadio, M. Janssen, D. Alvarez-Ortega, F. M. Potzl · 2026

Calibrating large volumes of Very Long Baseline Interferometry (VLBI) data traditionally requires significant human intervention at every stage. While the Common Astronomy Software Applications (CASA)…

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Mathematics Preprint PDF DOI

Bound-Preserving Flux-Corrected Transport Methods for Solving Richards' Equation

Arnob Barua, Christopher E. Kees, Dmitri Kuzmin · 2026

Simulating infiltration in porous media using Richards' equation remains computationally challenging due to its parabolic structure and nonlinear coefficients. While a wide range of numerical methods …

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Sociology & Anthropology Preprint PDF DOI

Simon's model does not produce Zipf's law: The fundamental rich-get-richer mechanism for any power-law size ranking

Pablo Rosillo-Rodes, Julia Witte Zimmerman, Laurent Hebert-Dufresne, Peter Sheridan Dodds · 2026

Many complex systems are composed of disparate, interacting types of varying sizes: Species abundances in ecosystems, firm sizes in markets, city populations in countries, word counts in language, etc…

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Mathematics Preprint PDF DOI

Convergence analysis and proof of acceleration for NGMRES applied to the Picard iteration for Navier-Stokes equations

Yunhui He, Leo G Rebholz · 2026

We consider nonlinear GMRES (NGMRES) as an acceleration technique for the Navier-Stokes Picard iteration, a direction that has not previously been explored. We identify the optimal norm for the least …

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Mathematics Preprint PDF DOI

Picard Iteration for Parameter Estimation in Nonlinear Dynamic Models of Aircraft and Spacecraft

Aleksandr Talitckii, Matthew Peet · 2026

The attitude dynamics of aircraft and spacecraft exhibit significantly nonlinear behaviour. In spacecraft, torque is generated through reaction wheels and control moment gyros. In aircraft, torque is …

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Mathematics Preprint PDF DOI

Categorical Torelli theorems for higher Picard rank Fano double covers

Augustinas Jacovskis, Reinder Meinsma · 2026

We prove categorical Torelli theorems for three families of Fano threefolds with Picard rank $\rho >1$. Members of these families manifest as double covers branched in anticanonical K3 surfaces. Our p…

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Physics Preprint PDF DOI

Enhancing Ly{\alpha} Emitter Identification in HETDEX with a Convolutional Neural Network

Shiro Mukae, Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis, Lindsay R. House, Mahdi Qezlou, Julian B. Munoz, Shun Saito, Daniel J. Farrow, Caryl Gronwall, Donald P. Schneider, Eric Gawiser · 2026

We present a deep learning framework to enhance the identification of Ly$\alpha$ emitters (LAEs) in the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX), an untargeted spectroscopic survey of LA…

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Mathematics Preprint PDF DOI

Putting the Brauer back in Brauer-Picard

Sean Sanford · 2026

We establish a 6-term left exact sequence, involving Galois cohomology of the base field $\mathbb K$, and the Brauer-Picard groupoid of a fusion category. This generalizes a result of Etingof, Nikshyc…

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AI & Data Science Preprint PDF DOI

A Comparative Study of Modern Object Detectors for Robust Apple Detection in Orchard Imagery

Mohammed Asad, Ajai Kumar Gautam, Priyanshu Dhiman, Rishi Raj Prajapati · 2026

Accurate apple detection in orchard images is important for yield prediction, fruit counting, robotic harvesting, and crop monitoring. However, changing illumination, leaf clutter, dense fruit cluster…

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Mathematics Preprint PDF DOI

Picard-Fuchs Equations of Twisted Differential forms associated to Feynman Integrals

Pierre Vanhove · 2026

Dimensionally or analytically regulated Feynman integrals lead to relative twisted period integrals. We present a recent extension of the Griffiths-Dwork pole reduction algorithm for deriving the D-mo…

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AI & Data Science Preprint PDF DOI

WeatherRemover: All-in-one Adverse Weather Removal with Multi-scale Feature Map Compression

Weikai Qu, Sijun Liang, Cheng Pan, Zikuan Yang, Guanchi Zhou, Xianjun Fu, Bo Liu, Changmiao Wang, Ahmed Elazab · 2026

Photographs taken in adverse weather conditions often suffer from blurriness, occlusion, and low brightness due to interference from rain, snow, and fog. These issues can significantly hinder the perf…

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AI & Data Science Preprint PDF DOI

Balancing Efficiency and Restoration: Lightweight Mamba-Based Model for CT Metal Artifact Reduction

Weikai Qu, Sijun Liang, Xianfeng Li, Cheng Pan, An Yan, Ahmed Elazab, Shanzhou Niu, Dong Zeng, Xiang Wan, Changmiao Wang · 2026

In computed tomography imaging, metal implants frequently generate severe artifacts that compromise image quality and hinder diagnostic accuracy. There are three main challenges in the existing method…

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AI & Data Science Preprint PDF DOI

SmokeGS-R: Physics-Guided Pseudo-Clean 3DGS for Real-World Multi-View Smoke Restoration

Xueming Fu, Lixia Han · 2026

Real-world smoke simultaneously attenuates scene radiance, adds airlight, and destabilizes multi-view appearance consistency, making robust 3D reconstruction particularly difficult. We present \textbf…

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