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Mathematics Preprint PDF DOI

Algebraic numbers and Fourier analysis: Salem's third problem

Khoa D. Nguyen ยท 2026

In 1963, Rapha\"el Salem concluded his highly influential book ``Algebraic Numbers and Fourier Analysis'' with a list of four unsolved problems. The first two problems remain wide open while the last โ€ฆ

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Computer Science Preprint PDF DOI

Peeling Rotten Potatoes for a Faster Approximation of Convex Cover

Omrit Filtser, Tzalik Maimon, Ofir Yomtovyan ยท 2026

The minimum convex cover problem seeks to cover a polygon $P$ with the fewest convex polygons that lie within $P$. This problem is $\exists\mathbb R$-complete, and the best previously known algorithm,โ€ฆ

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Computer Science Preprint PDF DOI

CapBench: A Multi-PDK Dataset for Machine-Learning-Based Post-Layout Capacitance Extraction

Hector R. Rodriguez, Jiechen Huang, Wenjian Yu ยท 2026

We present CapBench, a fully reproducible, multi-PDK dataset for capacitance extraction. The dataset is derived from open-source designs, including single-core CPUs, systems-on-chip, and media accelerโ€ฆ

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Physics Preprint PDF DOI

RAPRAL v1.0: RAdiation Prediction using RAy tracing and Line-by-line methods for hypersonic air flows

Yuzhe Zhang, Qizhen Hong, Xiaoyong Wang, Quanhua Sun ยท 2026

A new radiation solver, RAPRAL (RAdiation Prediction based on RAy tracing and Line-by-line) implemented in C++, is developed for simulating high-temperature thermochemical nonequilibrium radiative proโ€ฆ

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Mathematics Preprint PDF DOI

Determinantally Equivalent Functions Beyond the Nowhere-Zero Case

Harry Sapranidis Mantelos ยท 2026

Let $\Lambda$ be a set and $\mathbb{F}$ a field, and suppose that $K,Q:\Lambda^2\to\mathbb{F}$ are two functions such that for any $n\in\mathbb{N}$ and $x_1,x_2,\ldots,x_n\in\Lambda$, the determinantsโ€ฆ

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Mathematics Preprint PDF DOI

A universal bound on the blow-up rate for the focusing mass-critical nonlinear Schr\"odinger equation

Beomjong Kwak, Soonsik Kwon ยท 2026

In this paper, we investigate a universal blow-up bound for the focusing mass-critical nonlinear Schr\"odinger equation for general initial data in $L^2(\mathbb R^d)$, extending previous knowledge forโ€ฆ

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Mathematics Preprint PDF DOI

Construction of two-bubble blow-up solutions for the mass-critical gKdV equations

Yang Lan, Xu Yuan ยท 2026

For the mass-critical generalized Korteweg-de Vries equation, $$ \partial_{t}u+\partial_{x}\left( \partial_{x}^{2}u+u^{5}\right)=0,\quad (t,x)\in [0,\infty)\times \mathbb{R}.$$ We prove the existence โ€ฆ

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Physics Preprint PDF DOI

Grover Adaptive Search with Problem-Specific State Preparation

Maximilian Hess, Lilly Palackal, Abhishek Awasthi, Peter J. Eder, Manuel Schnaus, Laurin Demmler, Karen Wintersperger, Joseph Doetsch ยท 2026

Grover's search algorithm is one of the basic building block in the world of quantum algorithms. Successfully applying it to combinatorial optimization problems is a subtle challenge. As a quadratic sโ€ฆ

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Computer Science Preprint PDF DOI

SceneGuard: Training-Time Voice Protection with Scene-Consistent Audible Background Noise

Rui Sang, Yuxuan Liu ยท 2025

Voice cloning technology poses significant privacy threats by enabling unauthorized speech synthesis from limited audio samples. Existing defenses based on imperceptible adversarial perturbations are โ€ฆ

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AI & Data Science Preprint PDF DOI

Project Rachel: Can an AI Become a Scholarly Author?

Martin Monperrus, Benoit Baudry, Clement Vidal ยท 2025

This paper documents Project Rachel, an action research study that created and tracked a complete AI academic identity named Rachel So. Through careful publication of AI-generated research papers, we โ€ฆ

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Mathematics Preprint PDF DOI

Full range of infinite point blow-up exponents for the critical generalized KdV equation

Nailya Manatova ยท 2025

For the quintic, mass critical generalized Korteweg-de Vries equation, for any $\nu \in (\frac{1}{2}, 1)$, we prove the existence of solutions in the energy space that blow up in finite time $T>0$ witโ€ฆ

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AI & Data Science Preprint PDF DOI

DeepRWCap: Neural-Guided Random-Walk Capacitance Solver for IC Design

Hector R. Rodriguez, Jiechen Huang, Wenjian Yu ยท 2025

Monte Carlo random walk methods are widely used in capacitance extraction for their mesh free formulation and inherent parallelism. However, modern semiconductor technologies with densely packed strucโ€ฆ

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Computer Science Preprint PDF DOI

A Ratio-Based Shapley Value for Collaborative Machine Learning - Extended Version

Bjorn Filter, Ralf Moller, Ozgur Lutfu Ozcep ยท 2025

Collaborative machine learning enables multiple data owners to jointly train models for improved predictive performance. However, ensuring incentive compatibility and fair contribution-based rewards rโ€ฆ

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Mathematics Preprint PDF DOI

The strange story of an almost unknown prime number counter: The Rafael Barrett formula

Eduardo Mizraji ยท 2025

In this brief article, we present the formula created by Rafael Barrett in 1903 in a note to Henri Poincar\'e, which remained unknown for decades. Discovered in the 1930s by a Uruguayan mathematician,โ€ฆ

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Engineering Preprint PDF DOI

Vibration Damping in Underactuated Cable-suspended Artwork -- Flying Belt Motion Control

Martin Goubej, Lauria Clarke, Martin Hrabacka, David Tolar ยท 2025

This paper presents a comprehensive refurbishment of the interactive robotic art installation Standards and Double Standards by Rafael Lozano-Hemmer. The installation features an array of belts suspenโ€ฆ

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Neuroscience Preprint PDF DOI

Mechanisms for anesthesia, unawareness, respiratory depression, memory replay and sleep: MHb > IPN > PAG + DRN + MRN > claustrum > cortical slow waves

Karin Vadovicova ยท 2025

My findings show what causes loss of awareness, anesthesia, memory replay, opioid induced respiratory depression (OIRD), and slow-wave sleep (SWS). Opiates are fast pain relievers and anesthetics thatโ€ฆ

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Mathematics Preprint PDF DOI

Numerical computation of linearized KV and the Deligne-Drinfeld and Broadhurst-Kreimer conjectures

Florian Naef, Thomas Willwacher ยท 2025

We compute numerically the dimensions of the graded quotients of the linearized Kashiwara-Vergne Lie algebra lkv in low weight, confirming a conjecture of Raphael-Schneps in those weights. The Lie algโ€ฆ

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Mathematics Preprint PDF DOI

Blow-up construction and instability for mass-critical half-wave equation with slightly superthreshold mass

Jeongheon Park, Soonsik Kwon, Taegyu Kim ยท 2025

We study the blow-up dynamics for the $L^2$-critical focusing half-wave equation on the real line, a nonlocal dispersive PDE arising in various physical models. As in other mass-critical models, the gโ€ฆ

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Mathematics Preprint PDF DOI

Minimal Banach-Tarski Decompositions

Cesare Straffelini, Kilian Zambanini ยท 2025

We investigate the problem of finding the minimum number of pieces necessary for dividing a three-dimensional sphere or a ball and reassembling it to form $n$ congruent copies of the original object, โ€ฆ

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Mathematics Preprint PDF DOI

Mode stability for self-similar blowup of slightly supercritical NLS: II. high-energy spectrum

Zexing Li ยท 2025

In continuation of the study of the companion work, we prove the high-energy mode stability for linearized operator around self-similar profiles in [Bahri-Martel-Rapha\"el, 2021] for slightly mass-supโ€ฆ

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