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arXiv preprints from January 1, 2026 through September 26, 2026 — 00:08:00 EST

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Posted in cs.CL · 2026-01-19 · Bingsen Chen, Boyan Li, Ping Nie, Yuyu Zhang, Xi Ye, Chen Zhao

Beyond Single-shot Writing: Deep Research Agents are Unreliable at Multi-turn Report Revision

Existing benchmarks for Deep Research Agents (DRAs) treat report generation as a single-shot writing task, which fundamentally diverges from how human researchers iteratively draft and revise reports via self-reflection or peer feedback. Whether DRAs can reliably revise reports with user feedback remains unexplored. We introduce Mr...

💬 0 commentsarXiv:2601.13217v1PDF
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Posted in cs.IT · 2026-01-19 · Ataher Sams, Besma Smida

On the Reliability of Estimation Bounds in Low-SNR Bistatic ISAC

This paper explores a bistatic Integrated Sensing and Communication (ISAC) framework, where a base station transmits communication signal that serve both direct communication with a user and multi-target parameter estimation through reflections captured by a separate sensing receiver. We assume that the instantaneous knowledge of the...

💬 0 commentsarXiv:2601.13216v1PDF
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Posted in cond-mat.mtrl-sci · 2026-01-19 · Noor Jahan Nipu, Chinmoy Nath Saha, Uttam Singisetti

Beta-AlGaO/Ga2O3 Tri-Gate MOSHEMT with 70GHz fT and 55GHz fmax

We report Beta-AlGaO/Ga2O3 tri-gate heterostructure MOSHEMTs incorporating a thin 5 nm Al2O3 gate oxide layer for improved gate control and reduced leakage. The devices were fabricated on AlGaO/GaO heterostructures grown by ozone MBE on Fe-doped Ga2O3 (010) substrates. The tri-gate MOSHEMTs, with 1 micron-wide fins and Lg=155 nm,...

💬 0 commentsarXiv:2601.13215v1PDF
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Posted in cs.IT · 2026-01-19 · Zheyu Wu, Junjie Ma, Ya-Feng Liu, Bruno Clerckx

An AMP-Based Asymptotic Analysis For Nonlinear One-Bit Precoding

This paper focuses on the asymptotic analysis of a class of nonlinear one-bit precoding schemes under Rayleigh fading channels. The considered scheme employs a convex-relaxation-then-quantization (CRQ) approach to the well-known minimum mean square error (MMSE) model, which includes the classical one-bit precoder SQUID as a special...

💬 0 commentsarXiv:2601.13214v1PDF
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Posted in cs.NI · 2026-01-19 · Joao F. Santos, Arshia Zolghadr, Scott Kuzdeba, Jacek Kibiłda

Conflict Detection in AI-RAN: Efficient Interaction Learning and Autonomous Graph Reconstruction

Artificial Intelligence (AI)-native mobile networks represent a fundamental step toward 6G, where learning, inference, and decision making are embedded into the Radio Access Network (RAN) itself. In such networks, multiple AI agents optimize the network to achieve distinct and often competing objectives. As such, conflicts become...

💬 0 commentsarXiv:2601.13213v2PDF
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Posted in math.AP · 2026-01-19 · Daniele Bartolucci, Paolo Cosentino, Lina Wu

A Harnack-type inequality for a perturbed singular Liouville Equation

Motivated by the Onsager statistical mechanics description of turbulent Euler flows with point singularities, we obtain a Harnack-type inequality for sequences of solutions of the following perturbed Liouville equation, \begin{equation}\nonumber -Δv_n=\left({ε_n^2+|x|^2}\right)^{α_n}V_n(x)e^{\displaystyle v_n} \qquad\text{in} \,\,\,...

💬 0 commentsarXiv:2601.13212v1PDF
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Posted in q-bio.QM · 2026-01-19 · James N. Cobley

A tropical geometry for bounded biochemical state spaces

Many biochemical measurements define state spaces that are bounded, absorbing, and physically irreversible, yet are routinely analysed using linear and Euclidean frameworks that assume global invertibility, symmetry, and translation invariance. This mismatch can irretrievably obscure biological structure, independent of data quality,...

💬 0 commentsarXiv:2601.13211v1PDF
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Posted in physics.soc-ph · 2026-01-19 · Yaniv Proselkov, Liming Xu, Alexandra Brintrup

Modelling viable supply networks with cooperative adaptive financing

We propose a financial liquidity policy sharing method for firm-to-firm supply networks, introducing a scalable autonomous control function for viable complex adaptive supply networks. Cooperation and competition in supply chains is reconciled through overlapping collaborative sets, making firms interdependent and enabling distributed...

💬 0 commentsarXiv:2601.13210v1PDF
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Posted in math.HO · 2026-01-19 · Haocheng Ju, Bin Dong

AI for Mathematics: Progress, Challenges, and Prospects

AI for Mathematics (AI4Math) has emerged as a distinct field that leverages machine learning to navigate mathematical landscapes historically intractable for early symbolic systems. While mid-20th-century symbolic approaches successfully automated formal logic, they faced severe scalability limitations due to the combinatorial...

💬 0 commentsarXiv:2601.13209v5PDF
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Posted in cs.CV · 2026-01-19 · Vikram R Lakkavalli

Rethinking Skip Connections: Additive U-Net for Robust and Interpretable Denoising

Skip connections are central to U-Net architectures for image denoising, but standard concatenation doubles channel dimensionality and obscures information flow, allowing uncontrolled noise transfer. We propose the Additive U-Net, which replaces concatenative skips with gated additive connections. Each skip pathway is scaled by a...

💬 0 commentsarXiv:2601.13208v1PDF
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Posted in cs.CV · 2026-01-19 · Jinnao Li, Zijian Chen, Tingzhu Chen, Changbo Wang

GTPred: Benchmarking MLLMs for Interpretable Geo-localization and Time-of-capture Prediction

Geo-localization aims to infer the geographic location where an image was captured using observable visual evidence. Traditional methods achieve impressive results through large-scale training on massive image corpora. With the emergence of multi-modal large language models (MLLMs), recent studies have explored their applications in...

💬 0 commentsarXiv:2601.13207v1PDF
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Posted in cs.AI · 2026-01-19 · Neil K. R. Sehgal, Sharath Chandra Guntuku, Lyle Ungar

Real-Time Deadlines Reveal Temporal Awareness Failures in LLM Strategic Dialogues

Large Language Models (LLMs) generate text token-by-token in discrete time, yet real-world communication, from therapy sessions to business negotiations, critically depends on continuous time constraints. Current LLM architectures and evaluation protocols rarely test for temporal awareness under real-time deadlines. We use simulated...

💬 0 commentsarXiv:2601.13206v1PDF
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Posted in eess.SP · 2026-01-19 · Kadyrzhan Tortayev, Oliver Falkenberg Damborg, Jònas À Hàlvmørk Joensen, Jonas Pedesk, Yifa Li, Fengchun Zhang, Zeliang An, Yubo Wang, Ming Shen

Co-Channel Interference Mitigation Using Deep Learning for Drone-Based Large-Scale Antenna Measurements

Unmanned aerial vehicles (UAVs) enable efficient in-situ radiation characterization of large-aperture antennas directly in their deployment environments. In such measurements, a continuous-wave (CW) probe tone is commonly transmitted to characterize the antenna response. However, active co-channel emissions from neighboring antennas...

💬 0 commentsarXiv:2601.13205v1PDF
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Posted in eess.SP · 2026-01-19 · Yanfeng Zhang, Xi'an Fan, Jinkai Zheng, Xiaoye Jing, Weiwei Yang, Xu Zhu

Hierarchical Sparse Vector Transmission for Ultra Reliable and Low Latency Communications

Sparse vector transmission (SVT) is a promising candidate technology for achieving ultra-reliable low-latency communication (URLLC). In this paper, a hierarchical SVT scheme is proposed for multi-user URLLC scenarios. The hierarchical SVT scheme partitions the transmitted bits into common and private parts. The common information is...

💬 0 commentsarXiv:2601.13204v1PDF
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Posted in nlin.SI · 2026-01-19 · Alexandr Buryak, Jianghao Xu, Di Yang

Bihamiltonian tests for integrable systems associated to rank-$1$ F-CohFTs

Double ramification (DR) hierarchies associated to rank-$1$ F-CohFTs are important integrable perturbations of the Riemann--Hopf hierarchy. In this paper, we perform bihamiltonian tests for these DR hierarchies, and conjecture that the ones that are bihamiltonian form a $2$-parameter family. Remarkably, our computations suggest that...

💬 0 commentsarXiv:2601.13203v1PDF
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Posted in eess.SY · 2026-01-19 · Michael Giovanniello, Dharik S. Mallapragada

Emissions and cost tradeoffs of time-matched clean electricity procurement under inter-annual weather variability -- case study of hydrogen production

Regulators and voluntary corporate sustainability efforts are increasingly adopting time-matching requirements (TMRs) for clean electricity procurement for large loads, such as data centers, and electricity-intensive fuel production, such as hydrogen. We use a stochastic capacity expansion model (CEM) framework to assess how...

💬 0 commentsarXiv:2601.13202v2PDF
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Posted in eess.SP · 2026-01-19 · Konstantinos D. Katsanos, George C. Alexandropoulos

Decentralized Cooperative Beamforming for BDRIS-Assisted Cell-Free MIMO OFDM Systems

In this paper, a wideband cell-free multi-stream multi-user Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) system is considered operating within a smart wireless environment enabled by multiple Beyond Diagonal Reconfigurable Intelligent Surfaces (BDRISs). A novel decentralized active and...

💬 0 commentsarXiv:2601.13201v1PDF
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Posted in astro-ph.EP · 2026-01-19 · Gabriele Pichierri, Giovanni Rosotti, Rossella Anania, Giuseppe Lodato

Timescales diagnostics for saving viscous and MHD-driven dusty discs from external photoevaporation

The evolution of protoplanetary discs is a function of their internal processes and of their environment. It is unclear if angular momentum is mainly removed viscously or by magnetic winds, or by a combination of the two. While external photoevaporation is expected to influence disc evolution and dispersal, there are observational...

💬 0 commentsarXiv:2601.13200v2PDF
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Posted in quant-ph · 2026-01-19 · Mihir Khanna, Yang Hu, Thomas P. Purdy

All-Dielectric Resonant Cavity Electro-Optic Transduction Between Microwave and Telecom

We present a resonant electro-optic transducer for efficient conversion between microwave and telecom wavelength photons. Our platform employs a bulk lithium niobate crystal whose large dielectric constant creates wavelength-scale confinement of microwave photons. By incorporating this crystal within a high-finesse Fabry - Perot...

💬 0 commentsarXiv:2601.13199v1PDF
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Posted in cs.SD · 2026-01-19 · Yang Wang, Yiqi Liu, Chenghao Xiao, Chenghua Lin

The Achilles' Heel of Angular Margins: A Chebyshev Polynomial Fix for Speaker Verification

Angular margin losses, such as AAM-Softmax, have become the de facto in speaker and face verification. Their success hinges on directly manipulating the angle between features and class prototypes. However, this manipulation relies on the arccos function to recover the angle, introducing a significant yet overlooked source of training...

💬 0 commentsarXiv:2601.13198v1PDF
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Posted in cs.CR · 2026-01-19 · Aravind B, Anirud R. S., Sai Surya Teja N, Bala Subrahmanya Sriranga Navaneeth A, Karthika R, Mohankumar N

Diffusion-Driven Synthetic Tabular Data Generation for Enhanced DoS/DDoS Attack Classification

Class imbalance refers to a situation where certain classes in a dataset have significantly fewer samples than oth- ers, leading to biased model performance. Class imbalance in network intrusion detection using Tabular Denoising Diffusion Probability Models (TabDDPM) for data augmentation is ad- dressed in this paper. Our approach...

💬 0 commentsarXiv:2601.13197v2PDF
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Posted in cs.RO · 2026-01-19 · Jacob Swindell, Marija Popović, Riccardo Polvara

Active Informative Planning for UAV-based Weed Mapping using Discrete Gaussian Process Representations

Accurate agricultural weed mapping using unmanned aerial vehicles (UAVs) is crucial for precision farming. While traditional methods rely on rigid, pre-defined flight paths and intensive offline processing, informative path planning (IPP) offers a way to collect data adaptively where it is most needed. Gaussian process (GP) mapping...

💬 0 commentsarXiv:2601.13196v1PDF
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Posted in quant-ph · 2026-01-19 · Qisheng Wang, Zhean Xu, Zhicheng Zhang

Quantum Data Structure for Range Minimum Query

Given an array $a[1..n]$, the Range Minimum Query (RMQ) problem is to maintain a data structure that supports RMQ queries: given a range $[l, r]$, find the index of the minimum element among $a[l..r]$, i.e., $\operatorname{argmin}_{i \in [l, r]} a[i]$. In this paper, we propose a quantum data structure that supports RMQ queries and...

💬 0 commentsarXiv:2601.13195v1PDF
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Posted in math.CO · 2026-01-19 · Verónica Borrás-Serrano, Isabel Byrne, Anant Godbole, Nathaniel Veimau

A Lower Bound on the Expected Number of Distinct Patterns in a Random Permutation

Let $π_n$ be a uniformly chosen random permutation on $[n]$. The authors of [2] showed that the expected number of distinct consecutive patterns of all lengths $k\in\{1,2,\ldots,n\}$ in $π_n$ was $\frac{n^2}{2}(1-o(1))$ as $n\to\infty$, exhibiting the fact that random permutations pack consecutive patterns near-perfectly. A conjecture...

💬 0 commentsarXiv:2601.13194v2PDF
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Posted in math.AP · 2026-01-19 · Yuxi Hu, Mengran Yuan, Jie Zhang

Asymptotic Stability of Rarefaction Waves for the Hyperbolized Navier-Stokes-Fourier System

This paper investigates the asymptotic stability of rarefaction waves for a one-dimensional compressible fluid system, where the Newton's law of viscosity and Fourier's law of heat conduction are replaced by Maxwell's law and Cattaneo's law, respectively. The system, which generalizes the classical Navier-Stokes-Fourier equations,...

💬 0 commentsarXiv:2601.13193v1PDF