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Mathematics Preprint PDF DOI

Rational characteristic classes of bundles with fibre a product of spheres

Jan McGarry-Furriol · 2026

We prove the existence of many non-trivial characteristic classes of smooth oriented bundles with fibre a product $ S^{n}\times S^{n} $ of odd-dimensional spheres. We do so by proving injectivity of t…

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Mathematics Preprint PDF DOI

Non-uniqueness for the stochastic incompressible Euler equations with a passive tracer

Ashish Bawalia, Zdzis{l}aw Brzezniak, Manil T. Mohan · 2026

In this work we investigate the phenomenon of pathwise non-uniqueness for the stochastic incompressible Euler equations with a passive tracer on the whole Euclidean space. The stochastic perturbations…

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Physics Preprint PDF DOI

A Theoretical Investigation of the Thermal and Photochemical Mechanisms of Ethylbenzene Dehydrogenation on Rutile TiO$_{2}$(110)

Nico Yannik Merkt · 2026

This master's thesis investigates the thermal and photochemical dehydrogenation of ethylbenzene (EB) to styrene on the rutile TiO$_{2}$(110) surface. A dual-methodological quantum chemical approach is…

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Mathematics Preprint PDF DOI

Components of strata of k-differentials and their orbit closures

Paul Apisa, Juliet Aygun · 2026

We obtain a complete classification of components of strata of holomorphic and meromorphic k-differentials. We show that, when genus is at least two and outside of explicit exceptions when k < 4, ther…

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Mathematics Preprint PDF DOI

A New Asymptotic-Preserving Dual Formulation Finite-Volume Method for the Compressible Euler Equations

Alina Chertock, Smadar Karni, Alexander Kurganov, Lorenzo Micalizzi · 2026

The paper focuses on the development of numerical methods for the compressible Euler equations. It is well-known that if the Mach number is small, the system becomes stiff and hence explicit schemes s…

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Physics Preprint PDF DOI

Thermodynamic and Radiative Properties of Euler-Heisenberg AdS Black Holes Surrounded by Quintessence and Dark Matter with a Cloud of Strings

Faizuddin Ahmed, Edilberto O. Silva · 2026

We investigate the thermodynamics, criticality, and selected radiative and optical properties of an Euler-Heisenberg AdS black hole surrounded by quintessence, perfect fluid dark matter, and a cloud o…

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Physics Preprint PDF DOI

Proximity Ferroelectricity Driven by Mobile High-Miller-Index Domain Walls

Changming Ke, Shi Liu · 2026

Wurtzite ferroelectrics such as scandium-doped aluminum nitride (AlScN) are promising for next-generation memory because of their compatibility with semiconductor processes and strong spontaneous pola…

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Mathematics Preprint PDF DOI

Strong convergence rate of Euler-Maruyama approximations in temporal-spatial H\"older-norms for L\'evy-driven stochastic differential equations

Vu Thi Hue, Ngoc Khue Tran, Hoang-Long Ngo · 2026

This paper studies the error between the exact solution and it's Euler-Maruyama approximation in temporal-spatial H\"older-norms for L\'evy-driven stochastic differential equations.…

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AI & Data Science Preprint PDF DOI

NeSyCat: A Monad-Based Categorical Semantics of the Neurosymbolic ULLER Framework

Daniel Romero Schellhorn, Till Mossakowski · 2026

ULLER (Unified Language for LEarning and Reasoning) offers a unified first-order logic (FOL) syntax, enabling its knowledge bases to be used directly across a wide range of neurosymbolic systems. The …

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Mathematics Preprint PDF DOI

Strong convergence and temporal-spatial regularity for tamed Euler approximations of L\'evy-driven SDEs

Yan Ding, Sizhou Wu, Ying Zhang · 2026

We study the temporal-spatial regularity properties of tamed Euler approximations for L\'evy-driven SDEs with superlinearly growing drift and diffusion coefficients. We first introduce a novel tamed E…

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Computer Science Preprint PDF DOI

A Theory of Hanoi Omega-Automata and Games

Emmanuel Filiot, Allen Joseph, Guillermo A. Perez, Saina Sunny · 2026

The Hanoi Omega-Automata (HOA) format has established itself as the definitive standard for encoding $\omega$-regular automata in modern synthesis tools. While HOA is widely adopted due to its succinc…

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AI & Data Science Preprint PDF DOI

Transformer as an Euler Discretization of Score-based Variational Flow

Huadong Liao · 2026

Despite the Transformer's dominance across machine learning, its architecture remains largely heuristic and lacks a unified theoretical foundation. We introduce Score-based Variational Flow (SVFlow), …

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Economics & Finance Preprint PDF DOI

Rigidity and default in production networks

Giacomo Como, Fabio Fagnani, Elisa Luciano, Alessandro Milazzo, Marco Scarsini · 2026

This paper studies the transmission of productivity shocks in general equilibrium production networks, when firms in different sectors operate under informational rigidity and rely on external debt. R…

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Physics Preprint PDF DOI

Two-layer sharply stratified Euler fluids in three dimensions: a Hamiltonian setting

R. Camassa, G. Falqui, G. Ortenzi, M. Pedroni, E. Sforza · 2026

Three-dimensional two-layer incompressible Euler fluids are studied from a Hamiltonian perspective. A natural Hamiltonian structure for the effective 2D model described by the interface-value of the f…

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Physics Preprint PDF DOI

Retrieving intrinsic polarization anisotropies of nanostructures using differential Mueller matrix polarimetry

Jeeban Kumar Nayak, Ebru Buhara, Olivier J.F. Martin · 2026

Accurate characterization of polarization dependent light matter interactions in nanostructured systems is paramount for the development of chiral metasurfaces. It is also often challenging, because m…

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Physics Preprint PDF DOI

High Dynamic Range enhancement in Mueller matrix polarimetry

Lourdes Camblor-Navarro, Iago Pardo, Oriol Arteaga · 2026

Mueller matrix (MM) polarimetry is an effective, non-invasive tool for retrieving information from complex media. However, the finite dynamic range of optical detectors poses a significant challenge w…

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AI & Data Science Preprint PDF DOI

Optimal Stopping in Sequential Clinical Prediction

Hui-Mean Foo, Yuan-chin Ivan Chang · 2026

Most clinical prediction studies are developed from retrospective cohorts and reported as if all patient information were observed at once. In practice, clinicians face a more consequential question: …

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Mathematics Preprint PDF DOI

Cumulative Euler flows

Helge Kristian Jenssen · 2026

We consider the compressible Euler system for ideal gas flow in the absence of any forces except the internal thermodynamic pressure. In this setting, and in dimensions higher 1, it is known that …

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Computer Science Preprint PDF DOI

Recursive Structure of Hulls of PRM Codes

Yufeng Song, Qin Yue · 2026

For a nonnegative integer $r$ and a positive integer $v$ satisfying \[ \frac{r(q-1)}{2}<v<\frac{(r+1)(q-1)}{2}, \] we define the combinatorial numbers \[ A_r(v)= \begin{cases} \display…

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Mathematics Preprint PDF DOI

Segment convergence for super-linear stochastic functional differential equations by the truncated Euler-Maruyama method

Shounian Deng, Weiyin Fei, Banban Shi · 2026

Most existing literature focuses on pointwise convergence (i.e., convergence at a fixed time point) of numerical solutions for Stochastic functional differential equations (SFDEs). In contrast, this p…

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