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arXiv preprints from January 1, 2026 through July 28, 2026 — 16:08:18 EST

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Posted in math.PR · 2026-01-16 · Davide Gabrielli, Federica Iacovissi

Large deviations and the matrix product ansatz

We consider probability measures on $A^N$, the set of sequences of symbols on a finite alphabet $A$ of length $N$, that give a weight to each sequence in terms of a collection of matrices with non-negative entries and having rows and columns labeled by a finite or countable set $B$. We prove for such kind of measures large deviations...

💬 0 commentsarXiv:2601.11820v1PDF
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Posted in cs.CL · 2026-01-16 · Shirlene Rose Bandela, Sanjeev Parthasarathy, Vaibhav Garg

TWeddit : A Dataset of Triggering Stories Predominantly Shared by Women on Reddit

Warning: This paper may contain examples and topics that may be disturbing to some readers, especially survivors of miscarriage and sexual violence. People affected by abortion, miscarriage, or sexual violence often share their experiences on social media to express emotions and seek support. On public platforms like Reddit, where...

💬 0 commentsarXiv:2601.11819v1PDF
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Posted in cond-mat.stat-mech · 2026-01-16 · C. Reichhardt, C. J. O. Reichhardt

Reversible to Irreversible Transitions in Pattern-Forming Systems with Cyclic Interactions

Transitions from reversible to irreversible or fluctuating states above a critical density and shear amplitude have been extensively studied in non-thermal cyclically sheared suspensions and amorphous solids. Here, we propose that the same type of reversible to irreversible transition occurs for a system of particles with competing...

💬 0 commentsarXiv:2601.11818v1PDF
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Posted in cs.CY · 2026-01-16 · Yumou Wei, John Carney, John Stamper, Nancy Belmont

From Defense to Advocacy: Empowering Users to Leverage the Blind Spot of AI Inference

Most privacy regulations function as a passive defensive shield that users must wield themselves. Users are incessantly asked to "opt-in" or "opt-out" of data collection, forced to make defensive decisions whose consequences are increasingly difficult to predict. Viewed through the Johari Window, a psychological framework of...

💬 0 commentsarXiv:2601.11817v1PDF
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Posted in cs.AI · 2026-01-16 · Zahra Moslemi, Keerthi Koneru, Yen-Ting Lee, Sheethal Kumar, Ramesh Radhakrishnan

POLARIS: Typed Planning and Governed Execution for Agentic AI in Back-Office Automation

Enterprise back office workflows require agentic systems that are auditable, policy-aligned, and operationally predictable, capabilities that generic multi-agent setups often fail to deliver. We present POLARIS (Policy-Aware LLM Agentic Reasoning for Integrated Systems), a governed orchestration framework that treats automation as...

💬 0 commentsarXiv:2601.11816v1PDF
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Posted in cs.IT · 2026-01-16 · Joe Suzuki

Bayesian ICA for Causal Discovery

Causal discovery based on Independent Component Analysis (ICA) has achieved remarkable success through the LiNGAM framework, which exploits non-Gaussianity and independence of noise variables to identify causal order. However, classical LiNGAM methods rely on the strong assumption that there exists an ordering under which the noise...

💬 0 commentsarXiv:2601.11815v2PDF
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Posted in math.DS · 2026-01-16 · Till Hauser, Chunlin Liu

The maximal mean equicontinuous factor via regional mean sensitivity

For actions of amenable groups, mean equicontinuity-a natural relaxation of equicontinuity obtained by averaging metrics along orbits-is well known to yield a maximal mean equicontinuous factor. In 2021, Li and Yu introduced the notion of weak sensitivity in the mean for actions of $\mathbb{Z}$ to gain a deeper understanding of this...

💬 0 commentsarXiv:2601.11814v1PDF
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Posted in math.AG · 2026-01-16 · Rodolfo Aguilar

The relative Clemens Conjectures for $\frac{1}{2}$-log Calabi-Yau threefolds

We formulate a relative analogue of the Clemens conjectures for 1/2-log Calabi-Yau threefold pairs (X,Y) (where K_X+2Y is isomorphic to O_X). This framework rests on the restoration of a perfect deformation/obstruction duality specific to the 1/2-log CY threefold setting. Based on this duality, we conjecture that for a generic...

💬 0 commentsarXiv:2601.11813v2PDF
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Posted in cs.HC · 2026-01-16 · Zaifeng Gao, Yuanxiu Zhao, Hanxi Pan, Wei Xu

Toward Human-Centered Human-AI Interaction: Advances in Theoretical Frameworks and Practice

With the rapid development of artificial intelligence (AI), machines are increasingly evolving into intelligent agents, and the human-machine relationship is shifting from traditional "human-computer interaction" toward a new paradigm of "human-AI collaboration." However, technology-centered approaches to AI development have gradually...

💬 0 commentsarXiv:2601.11812v2PDF
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Posted in cs.HC · 2026-01-16 · Yuki Ueno, Hiroaki Natsukawa, Koji Koyamada

Do Boxes Affect Exploration Behavior and Performance in Group-in-a-box Layouts?

The group-in-a-box (GIB) layout is an efficient graph drawing method designed to visualize the group structure of graphs. The layout communicates group sizes and both within-group and between-group network structures simultaneously. The layout is characterized by its composition of multiple elements, including nodes, edges, and boxes....

💬 0 commentsarXiv:2601.11811v1PDF
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Posted in math.AG · 2026-01-16 · Rodolfo Aguilar

Infinitesimal invariants of mixed Hodge structures II: Log Clemens conjecture and log connectivity

Following previous work, we continue the study of infinitesimal methods in mixed Hodge theory. In the first part, inspired by the deformation theory of curves on Calabi-Yau threefolds, we study deformations of smooth $\mathbb{Q}$-log Calabi-Yau pairs $(X,Y)$. We prove unobstructedness results for these pairs under Fano hypotheses. We...

💬 0 commentsarXiv:2601.11810v1PDF
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Posted in cs.AI · 2026-01-16 · Zeyu Mu, Shangtong Zhang, B. Brian Park

Multi-agent DRL-based Lane Change Decision Model for Cooperative Planning in Mixed Traffic

Connected automated vehicles (CAVs) possess the ability to communicate and coordinate with one another, enabling cooperative platooning that enhances both energy efficiency and traffic flow. However, during the initial stage of CAV deployment, the sparse distribution of CAVs among human-driven vehicles reduces the likelihood of...

💬 0 commentsarXiv:2601.11809v1PDF
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Posted in cs.DB · 2026-01-16 · Dongfang Zhao

SIVF: GPU-Resident IVF Index for Streaming Vector Search

GPU-accelerated Inverted File (IVF) index is one of the industry standards for large-scale vector search but relies on static VRAM layouts that hinder real-time mutability. Our benchmark and analysis reveal that existing designs of GPU IVF necessitate expensive CPU-GPU data transfers for index updates, causing system latency to spike...

💬 0 commentsarXiv:2601.11808v3PDF
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Posted in cs.HC · 2026-01-16 · Pijuan Yu, Anzu Kawazoe, Alexis Urquhart, Thomas K. Ferris, M. Cynthia Hipwell, Rebecca F. Friesen

A Hybrid Soft Haptic Display for Rendering Lump Stiffness in Remote Palpation

Remote palpation enables noninvasive tissue examination in telemedicine, yet current tactile displays often lack the fidelity to convey both large-scale forces and fine spatial details. This study introduces a hybrid fingertip display comprising a rigid platform and a $4\times4$ soft pneumatic tactile display (4.93 mm displacement and...

💬 0 commentsarXiv:2601.11807v1PDF
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Posted in quant-ph · 2026-01-16 · Keita Omiya

Any local Hamiltonian with ferromagnetic quantum many-body scars has a generalized Shiraishi-Mori form

Quantum many-body scars (QMBS) are nonthermal eigenstates embedded in otherwise thermal spectra. A broad class of exact QMBS is realized as fixed-momentum magnon states above a ferromagnetic reference state. Here we prove a structural theorem for this class. Specifically, we show that any local Hamiltonian hosting such ``ferromagnetic...

💬 0 commentsarXiv:2601.11806v2PDF
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Posted in math.AG · 2026-01-16 · Ziyang Gao, Shou-Wu Zhang

Rank of normal functions and Betti strata

In a recent work of the authors, we proved the generic positivity of the Beilinson-Bloch heights of the Gross-Schoen and Ceresa cycles. The geometric part of the proof was to prove the maximality of the rank of the associated normal function and the Zariski closedness of the Betti strata. In this paper, we generalize these geometric...

💬 0 commentsarXiv:2601.11805v1PDF
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Posted in math.DS · 2026-01-16 · Rishi Dadlani, John S. McAlister, Tahra L. Eissa, Nina H. Fefferman

Classification of dynamics for a two person model of planned behavior

We study a dynamical system modeling the Theory of Planned Behavior (TPB) in which each individual's behavioral intention evolves continuously under an ODE driven by internal attitudes, perceived social norms, and perceived behavioral control. Actions occur as discrete threshold events: when intention reaches a fixed threshold it is...

💬 0 commentsarXiv:2601.11804v1PDF
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Posted in astro-ph.IM · 2026-01-16 · Lee D. Feinberg, Breann N. Sitarski, Michael W. McElwain, Giada Arney, Caleb Baker, Matthew R. Bolcar, Marie Levine, Alice Liu, Bertrand Mennesson, Aki Roberge, J. Scott Smith, Feng Zhao, John Ziemer

Habitable Worlds Observatory's Concept and Technology Maturation: Initial Feasibility and Trade Space Exploration

The Habitable Worlds Observatory is the first telescope ever designed to search for life and will be a powerhouse of discovery across topics in astrophysics. The observatory was the top recommendation of the Astro2020 Decadal Survey for large missions and a new HWO Technology Maturation Project Office was formed in August 2024 to...

💬 0 commentsarXiv:2601.11803v4PDF
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Posted in cs.RO · 2026-01-16 · Suguru Sato, Jinaykumar Patel, Kamesh Subbarao

Optimal Thruster Configuration for 6-DOF Control of a Small Satellite

With the growing deployment of small satellites (such as CubeSats, Nanosats, Picosats, and Femtosats) in Low Earth Orbit (LEO) for targeted applications like imaging, communication, data storage, and rendezvous-docking mission, there is increasing attention on orbit maintenance and attitude control. A common approach for active orbit...

💬 0 commentsarXiv:2601.11802v1PDF
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Posted in cs.RO · 2026-01-16 · Nitish Sontakke, K. Niranjan Kumar, Sehoon Ha

RobotDesignGPT: Automated Robot Design Synthesis using Vision Language Models

Robot design is a nontrivial process that involves careful consideration of multiple criteria, including user specifications, kinematic structures, and visual appearance. Therefore, the design process often relies heavily on domain expertise and significant human effort. The majority of current methods are rule-based, requiring the...

💬 0 commentsarXiv:2601.11801v1PDF
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Posted in math.AP · 2026-01-16 · Huy Q. Nguyen, Noah Stevenson

On large periodic traveling surface waves in porous media

We study large traveling surface waves within a two-dimensional finite depth, free boundary, homogeneous, incompressible and viscous fluid governed by Darcy's law. The fluid is bound by a gravitational force to a flat rigid bottom and meets an atmosphere of constant pressure at the top with its free surface, where it does not...

💬 0 commentsarXiv:2601.11800v1PDF
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Posted in math.NT · 2026-01-16 · Frank Gilson

Explicit separation of quadratic irrationals from the middle-third Cantor set

Assuming a mild non-degeneracy condition excluding very low-level Cantor endpoints, and assuming a counting/input hypothesis for the contribution of non-deep orbit indices, we show that for the quadratic field $K=\mathbb{Q}(α)$ there exist constants $A_K,B_K>0$ such that \[ \mathrm{exit}(α)\ \le\ A_K\,(\log_3 H)^2 + B_K. \]...

💬 0 commentsarXiv:2601.11799v2PDF
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Posted in cond-mat.mtrl-sci · 2026-01-16 · Hai-Lan Luo, Josue Rodriguez, Maximilian Huber, Haoyue Jiang, Luca Moreschini, Pranav Thekke Madathil, Catherine Xu, Chris Jozwiak, Aaron Bostwick, Alexei Fedorov, James G. Analytis, Dung-Hai Lee, Alessandra Lanzara

Spin-Valley Locking in 2H-TaS2 and Its Co-Intercalated Counterpart: Roles of Surface Domains and Co Intercalation

Tuning and probing spin-valley coupling is key to understanding correlated ground states in 2$\it{H}$-TaS$_2$. Its magnetically intercalated analogue, Co$_{1/3}$TaS$_2$, introduces additional degrees of freedom, including modified interlayer coupling and magnetism, to modulate spin-valley physics. Surface-sensitive probes like ARPES...

💬 0 commentsarXiv:2601.11798v1PDF
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Posted in cs.IT · 2026-01-16 · Tenghao Li, Neha Sangwan, Xiaxin Li, Arya Mazumdar

The Noisy Quantitative Group Testing Problem

In this paper, we study the problem of quantitative group testing (QGT) and analyze the performance of three models: the noiseless model, the additive Gaussian noise model, and the noisy Z-channel model. For each model, we analyze two algorithmic approaches: a linear estimator based on correlation scores, and a least squares estimator...

💬 0 commentsarXiv:2601.11797v2PDF
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Posted in cond-mat.mtrl-sci · 2026-01-16 · Hai-Lan Luo, Josue Rodriguez, Debasis Dutta, Maximilian Huber, Haoyue Jiang, Luca Moreschini, Catherine Xu, Alexei Fedorov, Chris Jozwiak, Aaron Bostwick, Guoqing Chang, James G. Analytis, Dung-Hai Lee, Alessandra Lanzara

Discovery of Van Hove Singularities: Electronic Fingerprints of 3Q Magnetic Order in a van der Waals Quantum Magnet

Magnetically intercalated transition metal dichalcogenides are emerging as a rich platform for exploring exotic quantum states in van der Waals magnets. Among them, CoxTaS2 has attracted intense interest following the recent discovery of a distinctive 3Q magnetic ground state and a pronounced topological Hall effect below a critical...

💬 0 commentsarXiv:2601.11796v2PDF