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Computer Science Preprint PDF DOI

Users' Activity Logs: the Good, the Bad, the Misconception, and the Disastrous

Eman Alashwali · 2026

Most service providers, such as Google, save logs from data generated by users while using the service. Many service providers provide users with privacy controls to manage whether, how, and for how l…

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Mathematics Preprint PDF DOI

Monodromy action of mirror stops for toric Calabi-Yau surfaces

Michela Barbieri, Andrew Hanlon, Jeff Hicks · 2026

Mirror symmetry predicts an action by the fundamental group of a conjectural stringy K\"ahler moduli space on the derived category of an algebraic variety. For a toric variety, a model for this space …

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Physics Preprint PDF DOI

First Observation of Multiple Very-Near-Earth Reconnection Events During a Single Storm Main Phase

Fekireselassie Beyene, Vassilis Angelopoulos, Christine Gabrielse, Yoshizumi Miyoshi, Iku Shinohara, Shoichiro Yokota, Satoshi Kasahara, Kunihiro Keika, Tomoaki Hori, Yasumasa Kasaba, Yoshiya Kasahara, Ayako Matsuoka, Mariko Teramoto, Kazuhiro Yamamoto · 2026

For the first time, this paper presents three very-near-Earth reconnection (VNERX) events observed within the same 12-hour-long storm main phase. The THEMIS inner probes observed the hallmarks of thre…

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Mathematics Preprint PDF DOI

Spectrum of Random Matrices with Exploding Moments

Indrajit Jana, Sunita Rani · 2026

We study the central limit theorem (CLT) for linear eigenvalue statistics of several types of matrix models, whose entries are having exploding moments, i.e., moments of the entries are increasing wit…

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Physics Preprint PDF DOI

Integrable Deformations of the Breitenlohner-Maison Model from 4d Chern-Simons Theory

Meer Ashwinkumar, Matthias Blau · 2026

We derive integrable deformations of the 2d Breitenlohner-Maison (BM) sigma model that describes the stationary, axisymmetric sector of 4d general relativity, as well as higher-rank generalisations th…

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Mathematics Preprint PDF DOI

A mathematical study of an elastic-viscous-plastic sea-ice model with the Kelvin-Voigt rheology

Daniel W. Boutros, Xin Liu, Marita Thomas, Edriss S. Titi · 2026

Motivated by the elastic-viscous-plastic (EVP) sea-ice model [E. C. Hunke and J. K. Dukowicz, J. Phys. Oceanogr., 27, 9 (1997), 1849--1867], which is used in large-scale numerical climate simulations,…

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Computer Science Preprint PDF DOI

ImproBR: Bug Report Improver Using LLMs

Emre Furkan Akyol, Mehmet Dedeler, Eray Tuzun · 2026

Bug tracking systems play a crucial role in software maintenance, yet developers frequently struggle with low-quality user-submitted reports that omit essential details such as Steps to Reproduce (S2R…

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Physics Preprint PDF DOI

Neural-Network-Based Variational Method in Nuclear Density Functional Theory: Application to the Extended Thomas-Fermi Model

Kenta Yoshimura · 2026

We propose a neural-network-based variational framework for nuclear Density Functional Theory based on the extended Thomas--Fermi (ETF) model, in which proton and neutron number densities are represen…

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Computer Science Preprint PDF DOI

An Empirical Analysis of Mobile Energy Consumption Across User Configurations

Wellington Oliveira · 2026

Mobile devices have become ubiquitous tools for communication, entertainment, and productivity, yet battery autonomy remains a constraint. While energy-saving tips exist, they are often generic, anecd…

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AI & Data Science Preprint PDF DOI

Wiki Dumps to Training Corpora: South Slavic Case

Mihailo Skoric · 2026

This paper presents a methodology for transforming raw Wikimedia dumps into quality textual corpora for seven South Slavic languages. The work is divided into two major phases. The first involves extr…

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AI & Data Science Preprint PDF DOI

What Makes Good Instruction-Tuning Data? An In-Context Learning Perspective

Guangzeng Han, Xiaolei Huang · 2026

Instruction-tuning datasets often contain substantial redundancy and low-quality samples, necessitating effective data selection methods. We propose an instruction data selection framework based on we…

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Computer Science Preprint PDF DOI

Barriers and Enablers of Online Instruction in Hospitality Education in the Philippines: An Exploratory Study

Maria Anna D. Cruz, Jeaneth D. Serna, Lloyd D. Feliciano, Mike Haizon M. David, Ma. Ferna Bel L. Punsalan, Glen Brian L. Lacsa, Michelle C. Castro, John Paul P. Miranda · 2026

This study examined the barriers and enablers of online instruction in hospitality education. A sequential exploratory design was implemented with hospitality teachers from both public and private hig…

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Physics Preprint PDF DOI

Solar Energetic Particle Reflection by Precursor ICMEs: Multi-spacecraft Observations of Bi-Directional Electron Beams at 1 AU

Lucas Liuzzo, Wenwen Wei, Andrew R. Poppe, Christina O. Lee, Vassilis Angelopoulos · 2026

We present case studies of two impulsive solar energetic electron (SEE) events during which particles at energies from 1-600 keV were detected by THEMIS-ARTEMIS orbiting the Moon, Wind at Earth's firs…

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Physics Preprint PDF DOI

Toller matrices and the Feynman $i\varepsilon$ in spinfoams

Eugenio Bianchi, Chaosong Chen, Mauricio Gamonal · 2026

We study the analytic properties and three equivalent representations of the Toller matrices $T^{(\pm)}$ which appear in the causal formulation of spinfoam transition amplitudes for 4d Lorentzian quan…

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Education Preprint PDF DOI

Six textbook mistakes in quantum field theory

Alexandros Gezerlis · 2026

This article discusses incorrect statements appearing in textbooks on quantum field theory (QFT); some of these mistakes also appear in the research literature. The focus is not on errors made by an i…

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Physics Preprint PDF DOI

Optimal paths across potentials on scalar field space

Saskia Demulder, Dieter Lust, Carmine Montella, Thomas Raml · 2026

Motivated by the Swampland Distance Conjecture, we study distances in field space using the framework of Optimal Transport. The associated optimisation problem naturally leads to a notion of distance …

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Computer Science Preprint PDF DOI

Workplace Demands and Emotional Expression Among Early Childhood Educators: A Computational Analysis of Professional Online Discourse

Hailong Jiang · 2026

Early childhood educators work in settings characterized by heavy regulation, emotional labor, staffing instability, and low pay. Although these conditions are well documented in survey-based research…

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Physics Preprint PDF DOI

Quantum Prediction of Transport Dynamics in Discretized State Spaces

Felix Govaers · 2026

We propose a gate-based quantum algorithm for the prediction step of Bayesian state estimation based on the Fokker-Planck equation on a discretized position-velocity state space. The probability densi…

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Mathematics Preprint PDF DOI

Topological and differentiable aspects of Clifford semigroups

Stefano Bonzio, Andrea Loi, Giuseppe Zecchini · 2026

This paper investigates the interplay between algebraic structure, topology, and differentiability in Clifford semigroups. The study is developed along three main themes. First, in the compact Hausdor…

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Physics Preprint PDF DOI

Scissors modes in generalized Gross-Pitaevskii equations

Neelam Shukla, Oleksandr V. Marchukov, Bastien Humbert, Jan Arlt, Jeremy Armstrong, Artem G. Volosniev · 2026

We investigate scissors modes in nonlinear systems with arbitrary power-law dependence of the nonlinear term. Through analytical derivation, we establish a general expression demonstrating that, in th…

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