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Mathematics Preprint PDF DOI

Notes on the deformed Hermitian-Yang-Mills equations and the large scaling limits of stability conditions

Yu-Wei Fan · 2026

In this short note, we show that, assuming a conjecture of Arcara and Miles, a line bundle on a smooth complex projective surface admits a deformed Hermitian-Yang-Mills metric if and only if it is sta…

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Physics Preprint PDF DOI

MG-NECOLA: A Field-Level Emulator for $f(R)$ Gravity and Massive Neutrino Cosmologies

J. Bayron Orjuela-Quintana, Mauricio Reyes, Elena Giusarma, Marco Baldi, Neerav Kaushal, Cesar A. Valenzuela-Toledo · 2026

Accurate modeling of non-linear gravitational dynamics is essential for constraining extensions to the standard cosmological model using large-scale structure observations. While high-resolution $N$-b…

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Mathematics Preprint PDF DOI

The No Barber Principle: Towards Formalised Selection in the Inaccessible Game

Neil D. Lawrence · 2026

The inaccessible game (Lawrence, 2025, 2026) is an information-theoretic dynamical system governed by three information loss axioms, a marginal entropy conservation constraint and maximum entropy dyna…

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Mathematics Preprint PDF DOI

A point-free approach to the Nakaoka spectrum of a Tambara functor

Drew Heard · 2026

For $G$ a finite group and $T$ a $G$-Tambara functor, we construct the frame $\mathop{RadId}_G(T)$ of radical Tambara ideals and show that its points are the Nakaoka primes. We show that this frame is…

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Physics Preprint PDF DOI

A Lagrangian framework for canonical analysis for the Holst model with $\beta = 0$

Roberto Ciccarelli, Lorenzo Fatibene · 2026

We perform a canonical analysis of the Holst model for General Relativity, within the framework laid out in arXiv:2401.07307 and arXiv:2010.07725, distinguishing our approach by setting the Barbero pa…

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Mathematics Preprint PDF DOI

Whitehead torsion and the kernel of assembly

Oscar Harr · 2026

For a topological space that is homeomorphic to a finite simplicial complex, we prove that the Bartels--Nikolaus assembly functor has a fully faithful right adjoint. Using this, we define for each suc…

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Mathematics Preprint PDF DOI

Statistical Limit Theorems for Axiom A Diffeomorphisms: Exponential Mixing, Central Limit Theorem, and Large Deviations

Abdoulaye Thiam · 2026

We establish statistical limit theorems for equilibrium states of Axiom A diffeomorphisms, derived from the spectral gap of the Ruelle transfer operator established in Part I (Thiam2026a) and transfer…

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Physics Preprint PDF DOI

Multi-Fidelity Monte-Carlo Estimation of Satellite Drag in Very-Low-Earth Orbit

Jovan Boskovic, Marcel Pfeifer, Andrea Beck · 2026

Very-low-Earth orbit drag uncertainty quantification in the rarefied/transitional Knudsen-number regime requires estimating not only the mean drag coefficient but also higher-order moments under atmos…

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Mathematics Preprint PDF DOI

Normal approximation for iterated inner functions

Yukun Chen, Xiangdi Fu, Zhaofeng Lin, Yanqi Qiu · 2026

A Berry--Ess\'{e}en theorem for linear combinations of iterates of an inner function is obtained. Our proof, which is based an elementary transfer argument and classical results in martingale theory, …

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AI & Data Science Preprint PDF DOI

Why MLLMs Struggle to Determine Object Orientations

Anju Gopinath, Nikhil Krishnaswamy, Bruce Draper · 2026

Multimodal Large Language Models (MLLMs) struggle with tasks that require reasoning about 2D object orientation in images, as documented in prior work. Tong et al. and Nichols et al. hypothesize that …

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Physics Preprint PDF DOI

Asymptotic Theorems and Averaging in Scalar Field Cosmology

Genly Leon, Aleksander Kozak, Claudio Michea · 2026

We present a hybrid study that combines a concise review of scalar-field cosmology with new analytic developments that integrate averaging reductions for oscillatory regimes with dynamical-systems tec…

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Physics Preprint PDF DOI

Entropy-Deformed Hamiltonian Dynamics of Schwarzschild Black Holes: A Superstatistical Approach

O.Garcia, O.Obregon, J. Rios Padilla · 2026

We study the effective dynamics of the Schwarzschild black hole interior by introducing entropic deformations derived from generalized superstatistical entropies $S_{+}$ and $S_{-}$. The resulting mod…

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Mathematics Preprint PDF DOI

The $K$-theory of finite Tambara fields: away from $p$

Noah Wisdom · 2026

In previous work, the author and Chan computed the algebraic $K$-theory of the constant $C_2$-Tambara field with value the field with two elements, using a method which fails at odd primes. Herein we …

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Physics Preprint PDF DOI

Optimising Quantum Error Correction Using Morphing Circuits

Mackenzie H. Shaw, Barbara M. Terhal · 2026

Quantum error correction (QEC) codes are traditionally defined and searched for without specifying the manner in which its syndrome extraction circuits are executed using elementary gates and measurem…

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Mathematics Preprint PDF DOI

On Petr Novikov's problem of ordered systems of uniform sets

Vladimir Kanovei, Vassily Lyubetsky · 2026

We prove that every ordinal $\alpha<\omega_2$ is the order type of a certain system of uniform Borel sets in the sense of a well-ordering relation defined by Petr Novikov. This result gives a positive…

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Physics Preprint PDF DOI

Effective Improved-GUP Cosmology: Emergent FLRW Universe without a Bounce

Saeed Rastgoo, Wilfredo Yupanqui · 2026

We investigate the effective dynamics of a spatially flat FLRW universe coupled to a massless scalar field by applying the improved generalized uncertainty principle (GUP)-inspired deformations to the…

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Mathematics Preprint PDF DOI

Compact Runge-Kutta flux reconstruction methods with entropy and/or kinetic energy preserving fluxes

Arpit Babbar, Qifan Chen, Hendrik Ranocha · 2026

Compact Runge-Kutta (cRK) methods are a class of high order methods for solving hyperbolic conservation laws characterized by their compact stencil including only immediate neighboring finite elements…

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Physics Preprint PDF DOI

Asymptotic Symmetries of the Holst Action at Spatial Infinity: Including Supertranslations

Sepideh Bakhoda, Hongguang Liu · 2026

We investigate the asymptotic symmetries of General Relativity at spatial infinity within the first-order formalism described by the Holst action. Employing the covariant phase space method, we propos…

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Physics Preprint PDF DOI

A Shakhov-based Bhatnagar-Gross-Krook model for polyatomic molecules and for atomic as well as polyatomic mixtures

Marcel Pfeiffer, Franziska Tuttas · 2026

The implementation of the Shakhov Bhatnagar-Gross-Krook (SBGK) method in the open-source particle code PICLas is extended for modeling of polyatomic molecules, as well as mixtures including atoms and …

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Physics Preprint PDF DOI

A P-Adaptive Hybridizable Discontinuous Galerkin Spectral Element Method for Electrostatic Particle-in-Cell Simulations

Tobias Ott, Stephen Copplestone, Marcel Pfeiffer · 2026

This paper presents a p-adaptive high-order hybridizable discontinuous Galerkin spectral element method (HDG-SEM) for solving the Poisson equation in electrostatic plasma simulations using particle-in…

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