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Mathematics Preprint PDF DOI

Nonlinear evolution equations with a non-Lipschitz perturbation: convergence of successive approximations and uniqueness of solutions

G. Diaz, J.I. D{i}az · 2026

This paper investigates the existence and uniqueness of solutions for a nonlinear evolution equation governed by an m-accretive operator A in a Banach space, presenting a perturbation term that does n…

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Physics Preprint PDF DOI

Comparison of two laser wavelengths for LIBS bioimaging of plants grown in lunar regolith

T. Vozar, L. Cechova, J. Buday, M. Fuleky, K. Molnarova, L. Lenza, J. Muzik, Y. Koshiba, M. Smrz, P. Porizka, J. Kaiser · 2026

The colonisation of extraterrestrial planets requires sustainable food production independent of Earth-based supplies. Due to the high costs and complicated logistics of food transport, in-situ cultiv…

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AI & Data Science Preprint PDF DOI

Taming the Centaur(s) with LAPITHS: a framework for a theoretically grounded interpretation of AI performances

Matteo Da Pelo, Alessio Donvito, Claudio Frongia, Pietro Salis, Antonio Lieto · 2026

We introduce a framework called LAPITHS (Language model Analysis through Paradigm grounded Interpretations of Theses about Human likenesS) and use it to show that several major claims advanced by mode…

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Physics Preprint PDF DOI

Search for light charged Higgs bosons decaying to charm and strange quarks in $\mathrm{t\bar{t}}$ events in proton-proton collisions at $\sqrt{s}$ = 13 TeV

CMS Collaboration · 2026

A search is presented for a light charged Higgs boson H$^\pm$ in top quark pair production ($\mathrm{t\bar{t}}$), where one of the top quarks decays to an H$^\pm$ and a bottom quark, while the other d…

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Physics Preprint PDF DOI

Cosmological Tensions as Consistency Conditions for f(Q) Gravity

Amare Abebe · 2026

Cosmology has entered a precision era in which discrepancies between independent datasets, most notably the $H_0$ and $S_8$ tensions, have become robust and statistically significant. These tensions a…

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Mathematics Preprint PDF DOI

G\r{a}rding Polynomials

Hao Fang, Biao Ma · 2026

We introduce G\r{a}rding polynomials, a class of real multivariate polynomials defined via positivity regions invariant under translation by positive directions and closed under strictly positive affi…

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Economics & Finance Preprint PDF DOI

The Satoshi Overhang: Why the Bear Case is Bounded

Karl T. Ulrich · 2026

Renewed public attention on the identity of Bitcoin's pseudonymous creator has sharpened focus on the Satoshi overhang, commonly framed as a tail risk for bitcoin. This paper argues that the mechanica…

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Mathematics Preprint PDF DOI

Propagation of nonlinear pulses near diffractive points of any order

Jian Wang, Mark Williams · 2026

We construct pulse-type approximate solutions to nonlinear hyperbolic equations near diffractive points, allowing arbitrary (even infinite) order of grazing. We show that in low regularity spaces and …

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Physics Preprint PDF DOI

Diffuse Gamma-ray Emission Around 4FGL J1626.0-4917

Ziwei Ou, Jie Wang · 2026

Extended gamma-ray sources provide significant information about particle propagation. 4FGL J1626.0-4917 was labeled as an unassociated source in 4FGL catalog without known counterparts at other wavel…

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Mathematics Preprint PDF DOI

Finite-time blow-up in a class of chemotaxis systems with spatially heterogeneous diffusion sensitivity

Yashuang Zhao, Shijun Li, Shaopeng Xu · 2026

\indent In this paper, we study a class of parabolic-elliptic Keller-Segel systems with diffusion sensitivity dependent on spatial position, given by type \begin{equation} \left\{ \begin{array}{ll…

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Mathematics Preprint PDF DOI

Hirzebruch $\chi_{y}$-genus of compact almost K\"{a}hler manifold with negative sectional curvature

Teng Huang, Pan Zhang · 2026

Let \((X,J,\omega)\) be a closed \(2n\)-dimensional almost K\"{a}hler manifold with negative sectional curvature. We prove that if the Nijenhuis tensor of the almost complex structure is sufficiently …

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AI & Data Science Preprint PDF DOI

Perturbation Probing: A Two-Pass-per-Prompt Diagnostic for FFN Behavioral Circuits in Aligned LLMs

Hongliang Liu, Tung-Ling Li, Yuhao Wu · 2026

Perturbation probing generates task-specific causal hypotheses for FFN neurons in large language models using two forward passes per prompt and no backpropagation, followed by a one-time intervention …

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Computer Science Preprint PDF DOI

Designing sparse temporal graphs satisfying connectivity requirements

Thomas Bellitto, Jules Bouton Popper, Justine Cauvi, Bruno Escoffier, Raphaelle Maistre-Matus · 2026

Connectivity of temporal graphs has been widely studied both as graph theory and as gossip theory. In particular, it is well known that in order to connect every vertex to every other, a temporal grap…

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Physics Preprint PDF DOI

The quantum group structure of long-range integrable deformations

Koen Schouten, Marius de Leeuw · 2026

Quantum integrable spin chains are known to possess a large family of long-range deformations generated by the local, boost and bilocal operators. Although these deformations are well-understood on th…

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AI & Data Science Preprint PDF DOI

Interval Orders, Biorders and Credibility-limited Belief Revision

Richard Booth, Ivan Varzinczak · 2026

Rational belief revision is commonly viewed as being based on a preference order between possible worlds, with the resulting new belief set being those sentences true in all the most preferred models …

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Physics Preprint PDF DOI

Dissipation Mechanisms and Dissipative Phase Transitions of two coupled Fully Connected Quantum Ising models

Bidyut Dey, Andrea Nava, Domenico Giuliano · 2026

We study dissipative phase transitions in a system of two coupled fully-connected quantum Ising models interacting with an environment. The dynamics is governed by a Lindblad master equation combining…

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Mathematics Preprint PDF DOI

Fractions of Recurrence Operators for Generalized Fourier Series in Classical Orthogonal Polynomials

Alexandre Benoit, Nicolas Brisebarre, Bruno Salvy · 2026

We consider series expansions in bases of classical orthogonal polynomials. When such a series solves a linear differential equation with polynomial coefficients, its coefficients satisfy a linear rec…

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Mathematics Preprint PDF DOI

Stability and existence of relativistic plasma--vacuum interfaces

Paolo Secchi, Yuri Trakhinin, Tao Wang · 2026

We consider the free boundary problem for relativistic plasma--vacuum interfaces in two and three spatial dimensions. The plasma flow is governed by the equations of ideal relativistic magnetohydrodyn…

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Physics Preprint PDF DOI

Protein folding on a 64 qubit trapped-ion hardware via counterdiabatic quantum optimization

Alejandro Gomez Cadavid, Pavle Nikacevic, Pranav Chandarana, Sebastian V. Romero, Enrique Solano, Narendra N. Hegade, Miguel Angel Lopez-Ruiz, Claudio Girotto, Hanna Linn, Hakan Doga, Evgeny Epifanovsky, Panagiotis Kl. Barkoutsos, Ananth Kaushik, Martin Roetteler · 2026

We report the largest trapped-ion hardware demonstration of lattice protein-folding optimization to date, using bias-field digitized counterdiabatic quantum optimization (BF-DCQO) on a fully connected…

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Computer Science Preprint PDF DOI

Solving Positive Linear Programs with Differential Privacy

Alina Ene, Huy Le Nguyen, Ta Duy Nguyen, Adrian Vladu · 2026

We study differentially private approximation algorithms for positive linear programs (LPs with nonnegative coefficients and variables), focusing on the fundamental families of packing, covering, and …

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