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Preprint Teks lengkap
Pulgon-tools: A toolkit for analysing and harnessing symmetries in quasi-1D systems
Pulgon-tools is an open-source software package providing building blocks for the analysis and modeling of quasi-one-dimensional (quasi-1D) periodic systems based on line-group theory. While mature libraries exist for space-group detection in three-dimensional crystals, an automated and…
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Preprint Teks lengkap
A Probabilistic Generative Model for Spectral Speech Enhancement
Speech enhancement in hearing aids remains a difficult task in nonstationary acoustic environments, mainly because current signal processing algorithms rely on fixed, manually tuned parameters that cannot adapt in situ to different users or listening contexts. This paper introduces a unified…
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Preprint Teks lengkap
Asymptotic behavior of small solutions to the Vlasov--Klein--Gordon system in high dimensions
We study the asymptotic behavior of small solutions to the Vlasov--Klein--Gordon system in high dimensions. The standard argument of Glassey and Strauss \cite{GS87} for studying small solutions to the Vlasov--Maxwell system does not apply to the Vlasov--Klein--Gordon system due to the massiveness…
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Preprint Teks lengkap
A Predictive Control Strategy to Offset-Point Tracking for Agricultural Mobile Robots
Robots are increasingly being deployed in agriculture to support sustainable practices and improve productivity. They offer strong potential to enable precise, efficient, and environmentally friendly operations. However, most existing path-following controllers focus solely on the robot's center of…
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Preprint Teks lengkap
A System-View Optimal Additional Active Power Control of Wind Turbines for Grid Frequency Support
Additional active power control (AAPC) of wind turbines (WTs) is essential to improve the transient frequency stability of low-inertia power systems. Most of the existing research has focused on imitating the frequency response of the synchronous generator (SG), known as virtual inertia control…
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Preprint Teks lengkap
A reduced-cost two-component relativistic equation-of-motion coupled cluster method for the double electron attachment problem
We present a computationally efficient relativistic formulation of the equation-of-motion coupled-cluster method for the double electron attachment problem. In this work, the exact two-component Hamiltonian within the atomic mean-field approximation is employed, yielding results that are in close…
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Preprint Teks lengkap
Optimal control with the shifted proper orthogonal decomposition via a first-reduce-then-optimize framework
Solving optimal control problems for transport-dominated partial differential equations (PDEs) can become computationally expensive, especially when dealing with high-dimensional systems. To overcome this challenge, we focus on developing and deriving reduced-order models that can replace the full…
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Preprint Teks lengkap
Structure-Preserving Dynamic Mode Decomposition for Highly Oscillatory Dynamics of Semiclassical Schrödinger Equations
We propose two novel data-driven dynamic mode decomposition (DMD)-type methods, the Crank--Nicolson DMD and the semi-implicit DMD, to predict the highly oscillatory dynamics of the semiclassical Schrödinger equations efficiently and accurately. Unlike many existing DMD-type methods which directly…
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Preprint Teks lengkap
Entropic Claim Resolution: Uncertainty-Driven Evidence Selection for RAG
Current Retrieval-Augmented Generation (RAG) systems predominantly rely on relevance-based dense retrieval, sequentially fetching documents to maximize semantic similarity with the query. However, in knowledge-intensive and real-world scenarios characterized by conflicting evidence or fundamental…
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Preprint Teks lengkap
The Return Map in the Class $\mathcal{O}_C$: Geometry, Dynamics, and Thickness Descent
We investigate a geometric dynamical mechanism arising in the class $\mathcal{O}_C$ of domains containing a fixed convex set $C$ and satisfying two geometric normals properties introduced by Barkatou \cite{barkatou2002}. The first property induces a radial structure linking the boundaries $\partial…
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Preprint Teks lengkap
Shifted affine iquantum groups of quasi-split ADE types
We formulate shifted affine iquantum groups of arbitrary quasi-split ADE types via Drinfeld presentations. We construct GKLO-type representations of shifted affine iquantum groups via algebras of difference operators, which allow us to construct truncated shifted affine iquantum groups. This…
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Preprint Teks lengkap
Nonlinear Trajectory Optimization Models for Energy-Sharing UAV-UGV Systems with Multiple Task Locations
Energy-sharing UAV-UGV systems extend the endurance of Uncrewed Aerial Vehicles (UAVs) by leveraging Uncrewed Ground Vehicles (UGVs) as mobile charging stations, enabling persistent autonomy in infrastructure-sparse environments. Trajectory optimization for these systems is often challenging due to…
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Preprint Teks lengkap
Tracking controllability on moving targets for parabolic equations
In this paper, we study the tracking controllability of a 1D parabolic type equation. Notably, with controls acting on the boundary, we seek to approximately control the solution of the equation on specific points of the domain. We prove that acting on one boundary point, we control the solution on…
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Preprint Teks lengkap
An Accurate and Fast Start-up Scheme for Power System Real-time Emergency Control
With the development of PMUs in power systems, the response-based real-time emergency control becomes a promising way to prevent power outages when power systems are subjected to large disturbances. The first step in the emergency control is to start up accurately and fast when needed. To this end…
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Preprint Teks lengkap
Improved Fractional Sobolev Embeddings on Closed Riemannian Manifolds under Isometric Group Actions
In this paper, we study symmetry-improved fractional Sobolev embeddings on closed Riemannian manifolds under the action of compact isometry groups. We prove that \(G\)-invariant fractional Sobolev spaces embed into higher \(L^p\) spaces, with corresponding compactness results depending on the…
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Preprint Teks lengkap
Detecting and Mitigating Flakiness in REST API Fuzzing
Test flakiness is a common problem in industry, which hinders the reliability of automated build and testing workflows. Most existing research on test flakiness has primarily focused on unit and small-scale integration tests. In contrast, flakiness in system-level testing such as REST APIs are…
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Preprint Teks lengkap
Global Convergence of the Return Dynamics in the Class $\mathcal{O}_C
In previous work we introduced a return map generated by a geometric round-trip between the boundary of a convex core \(C\) and the boundary of an admissible domain \(Ω\) belonging to the class \(\mathcal{O}_C\) (see Definition 1.2). The associated transformation \[ F:\partial C\to \partial C \]…
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Preprint Teks lengkap
Lecture Notes on Positivity Properties of Scattering Amplitudes
We review completely monotone (CM) and Stieltjes functions, which are classes of functions obeying an infinite hierarchy of positivity constraints. While these are classical concepts in analysis, such properties have recently been shown to arise in many fundamental building blocks and observables…
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Preprint Teks lengkap
FeDMRA: Federated Incremental Learning with Dynamic Memory Replay Allocation
In federated healthcare systems, Federated Class-Incremental Learning (FCIL) has emerged as a key paradigm, enabling continuous adaptive model learning among distributed clients while safeguarding data privacy. However, in practical applications, data across agent nodes within the distributed…
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Preprint Teks lengkap
Observation of the doubly charmed baryon $\itΞ_{cc}^+$ with the LHCb Run 3 detector
The first observation of the doubly charmed baryon $\itΞ_{cc}^+$ is reported through its decay to the $\itΛ_c^+ K^-π^+$ final state, with a statistical significance exceeding seven standard deviations. The observation is made using proton-proton collision data collected in 2024 with the LHCb Run 3…
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